David Bowie's producer claims there are "astounding" tracks left over from recording sessions for the singer's 2013 album, 'The Next Day'.
Tony Visconti spoke at the Music Producers Guild Awards on Friday (14.02.14), where he collected Bowie's innovation honour on the artist's behalf, and said "two or three" unreleased tracks could be released.
According to the BBC, he said he and Bowie were "very excited" by the reaction to the comeback album, which was nominated for the Mercury Music Prize.
He said: "We were very excited with the reaction. Honestly I was in a daze for the first week, because keeping a secret for two years took quite a lot of lying. I almost started believing my own stories!
"No one believed that David Bowie was going to make another album and so the timing was perfect, because everyone kind of gave up on him."
When rumours began circulating that the 67-year-old star was in bad health and planning to retire, Tony says he was "laughing" because he was fine.
He added: I'm in the studio with a very healthy man who has no problem writing songs, he wrote easily 30 songs for that album."
David Bowie is nominated for two BRIT Awards this weekend for Best Album for 'The Next Day' and Best Male Solo Artist, but he will reportedly not be attending the event on Wednesday (19.02.14) at London's O2 Arena.

George Michael doesn't "understand" why he has had to edit his new single.
The 50-year-old singer has digitally-removed the audience noises from his latest track 'Let Her Down Easy' - which was recorded during his 'Symphonica' world tour of 2011-12 - because of rules that would have prevented it from being played on radio, but he is unsure why the move was necessary.
He tweeted: "Good Morning campers! Just out of intrest, Let her down easy is indeed a live vocal, but radio these days wont any live or live sounding...
"sorry i meant radio wont PLAY any live or live sounding tracks on the radio on their playlists anyore, so we had to go in and ...
"get rid of all audience sounds off the track..I know i dont understand it either (sic)"
George previously went to number one with two live duets, in 1991 with Sir Elton John on 'Don't Let The Sun Go Down On Me' and two years later with Queen on 'Somebody To Love', and he is grateful the rules didn't apply when he released those songs as they would never have been so successful.
He added: "all i can thank god for is that it's a recent development because id have lost on two number one's, with Elton and queen! Anyway, just thought you'd like to have that cleared up (sic)"
George's latest record, also named 'Symphonica', will be released on March 17.

John Legend wants to become a coach on 'The Voice'.
The 'All Of Me' singer has revealed he was in talks to join the BBC talent show when it first started in 2012 but instead ended up joining 'Duets' in the US with Kelly Clarkson, Robin Thicke and Jennifer Nettles.
John exclusively told BANG Showbiz: "I did something like that ['The Voice'] in the States with 'Duets' and I was actually in discussion with 'The Voice' UK a few years ago but it didn't work out.
"I don't know all the details, but I'm open to it if the time is right. I think it would be fun."
During the first series of 'The Voice', which saw Tom Jones, will.i.am, Jessie J and The Script's Danny O'Donoghue mentor acts, contestant Jaz Ellington covered John's hit song 'Ordinary People', which shot up the charts as a result of his performance.
John, 35, said: "I love it [when people cover my songs], I think it's great.
"It's good for me as an artist, it makes people say, 'Oh, I wanna hear the original song', and as a songwriter it's an honour to know other singers love your songs."
The star admits he doesn't often watch talent shows in the US or the UK but enjoys mentoring new talent and would still like to be on a judging panel in the future.
He added: "I enjoy being a part of them and mentoring and performing, but I don't really enjoy watching them."
John's album 'Love in the Future' and single 'All of Me' are out now on G.O.O.D/Columbia.

Suzanne Shaw had "snot bubbles" after being axed from 'Dancing on Ice' last night.
The former Hear'Say singer became the latest celebrity to be eliminated from the all-stars series of the ITV competition last night (16.02.14) and she admits she was overcome with emotion when the news was delivered.
Appearing on ITV's 'This Morning' earlier today (17.02.14), she said: "Last night I was really like, 'It is what it is and that's fine' ... but I actually burst into tears and I was going to Matt, with snot bubbles, 'Please just help me out right now, I need to get myself sorted!' "
Suzanne, 32, was in the skate-off with Kyran Bracken last night - despite earning her highest score of the series so far - and she admits she is "gutted" to lose her place in the competitive final series of 'Dancing on Ice'.
She lamented: "It was really difficult and it's a bitter pill to take when you feel like you've put everything into it, and the aches and pains that you go through. And I've got to be honest, I'm gutted. But at the end of the day, it is what it is."
Suzanne's skating partner Matt Evers also revealed that the petite blonde suffered a scary injury while rehearsing for last night's routine.
He explained: "In dress rehearsals she actually smacked her head when doing that move where she goes back over on top of herself. And together with the physio team, we were a little bit concerned, was she going to be all right for the show?"

Charlie Brooks will make a fleeting return to 'EastEnders'. The actress - who plays Janine Butcher - was last seen in the soap on Christmas Day (25.12.13) when she was arrested for the murder of her husband Michael Moon (Steve John Shepard), but she'l...

John Travolta admits he owes Quentin Tarantino for resurrecting his career.
The actor was going through a slump for several years before the director cast him as hitman Vincent Vega in his critically acclaimed crime movie 'Pulp Fiction', which was released in 1994.
Travolta, 59, can't thank Tarantino enough for choosing him for the highly coveted role - for which he earned a Best Actor Oscar nomination.
Speaking on Sunday night (16.02.14) at his 'A Conversation with John Travolta' Q&A session at the Theatre Royal in London, he said: "There were people who were much hotter than me who wanted the role ... But Quentin put his career on the line and refused to make the movie without me in it."
Travolta admitted the years preceding 'Pulp Fiction' were a lean time for his career and he suffered a crisis in confidence in his on screen ability, despite his revered performances in movies such as 'Grease'.
He added: "It got a little complicated for a few years. A lot of things added up to a five-year period that wasn't so good for me."
Apart from his Academy Award nomination for 'Pulp Fiction', Travolta has only ever been up for an Oscar one other time - for his portrayal of Tony Manero in 'Saturday Night Fever' - but he is not bitter about his lack of recognition.
Being quizzed by host Barry Norman, he said: "I don't feel at all ignored or not verified. You're not going to find a bitter guy in me."
At the end of the event - which also saw the Hollywood star take questions from fans - Travolta was presented with an airplane-shaped birthday cake ahead of him turning 60 on February 18.

Lindsay Lohan can't get work because she has an "unreliable reputation", director Paul Schrader has claimed.
The 27-year-old actress' last feature was erotic thriller 'The Canyons' and she failed to show up at the film's premiere at the Venice Film Festival last year, despite Schrader - who helmed the project - changing the location to suit her.
The 67-year-old filmmaker believes Lindsay's unpredictable behaviour is the reason the former child star is now losing out on roles she would be perfect for.
In an interview with The Independent Magazine, he said: "When you are working with someone who lives in a world of crisis and unpredictability, you're never really relaxed. You never know from one moment to the next. That's why Lindsay can't get hired. She can't get insured because she has an unpredictable reputation."
Despite having his own frustrations with the 'Mean Girls' star, Schrader thinks Lindsay - who has been in rehab and jail on several occasions - is a remarkable actress but believes she will only be successful again when she learns to keep her personal and professional lives separate.
He added: "She is so f***ing charismatic. You can't take your eyes off her. She has that thing that we watch in movies - which is all the more pity that she can't separate her personal from her professional life."

John Travolta "didn't want to wake up" following the death of his son.
The 'Saturday Night Fever' actor's 16-year-old son Jett passed away in January 2009 after suffering a seizure and the 59-year-old star - who also has 13-year-old daughter Ella and three-year-old son Benjamin with wife Kelly Preston - says the tragedy was "the worst thing that's ever happened in my life."
Speaking to Barry Norman at a Q&A session in London last night (16.02.14), he added: "The truth is, I didn't know if I was going to make it.
"Life was no longer interesting to me, so it took a lot to get me better."
The 'Pulp Fiction' star credited his controversial faith Scientology for helping him overcome the tragedy, saying the organisation have "saved his life" on more than one occasion.
He said: "I will forever be grateful to Scientology for supporting me for two years solid, I mean Monday through Sunday.
"They didn't take a day off, working through different angles of the techniques to get through grief and loss, and to make me feel that finally I could get through a day."
Also during the fan-attended live interview, John was presented with a cake in the shape of an airplane to mark his forthcoming 60th birthday and some audience members were invited onto the stage for a dance lesson.

Charlie Sheen will "absolutely" have a pre-nuptial agreement before he marries Brett Rossi.
The 'Anger Management' actor - who has an estimated fortune of $125 million - plans to be "generous" towards the porn star in the event their marriage doesn't work out, though he doesn't think the financial contract is necessary because he sees her as his "soulmate".
A source said: "Charlie will absolutely be getting a pre-nup, just in case.
"The pre-nup will be very generous for Brett, but Charlie has to protect his finances even though he doesn't think the agreement will be needed, because he believes Brett is his soul mate.
"It's likely Charlie will pay for Brett's legal fees as they work out the details of the pre-nup. For him, this is only a formality. He doesn't think Brett is after his money. This time, it's different."
Charlie's third wife, Brooke Mueller - the mother of his four-year-old twin sons Bob and Max - received a $500,000 payment when the couple wed in 2008 and £300,000 for each year they were married, as well as $100,000 in relocation feeds and $2.35 million for her share in the actor's Beverly Hills mansion.
And the former 'Two and a Half Men' star is expected to be even more "generous" in his agreement with Brett, 24 than he was with Brooke, who he split from after less than three years together.
The source told RadarOnline.com: "Charlie will be a little more generous with Brett in regards to the pre-nup, than he was with Brooke."
Charlie was advised to draw up a pre-nup with second wife Denise Richards but refused, though she does get $55,000 in child support for their daughters Sam, nine, and Lola, eight.
The source explained: "There wasn't any need at that time because he just didn't have a lot of money. The Two and a Half Men money came after the marriage ended
Charlie married for the first time in 1995, to Donna Peele, but they split a year later.

Matt Damon sent Ben Affleck and Jimmy Kimmel a fax of his butt.
The 43-year-old actor hit back at Twitter jibes from his close pals, who have recently teased him over his reluctance to join the social networking site, by sending them a bare-buttock picture.
The friendly teasing began when Jimmy - who often mocks Matt on his late night talk show 'Jimmy Kimmel Live' - shared a link to a charity auction that Matt and Ben, 41, are involved in.
Ben thanked Jimmy on his Twitter page, but the 'Argo' star couldn't help but include some gentle ribbing of his best friend.
He wrote: "I thank you buddy. And @easterncongo & @water thank you. Matt on the other hand? Matt you there? Right. We will fax you."
While the 'Elysium' star isn't a Twitter user, he caught wind of the mocking and sent Ben and Jimmy the humorous fax.
Comedian Jimmy shared the fax - which Matt sent on a letterhead belonging to his and Ben's production company, Pearl Street Films with his Twitter users, writing: ".@BenAffleck - did you see what your 'friend' Matt faxed to us? NSFW (sic)"
The fax reads: "Dear Ben & Jimmy, here's my fax. Love MD."
The hunky star signed off the correspondence by putting his own spin on Twitter hashtags.
He wrote: "Faxtag: KimmelHasManBoobs (sic)"

Davina McCall and Emma Willis have been nominated for Disney's Celebrity Mum of the Year award.
The past and present 'Big Brother' presenters have both been selected as nominees for the 13th annual award - which will be voted on by the public on the Disney for Mums UK Facebook page - with the winner being announced next month.
Disney UK's Anna Hill said: "Being a mum is always a juggling act and we want to recognise the celebrities that the public think are making a great job of it."
The Saturdays singers Frankie Sandford, Una Foden and Rochelle Humes will also be competing against each other for the prize, with 'Strictly Come Dancing' winner Abbey Clancy, 'Britain's Got Talent' judge Amanda Holden, Denise Van Outen, Michelle Heaton and 'Young Blood' singer Sophie Ellis-Bextor completing the list of nominations.
The famous mothers have a total of 15 children between them but Disney also wants to make normal mums feel a bit more special in the run up to Mothers Day in the UK, March 30.
Anna added: "As well as crowning the Disney Celebrity Mum of the Year, we'll also be celebrating great mums from across the UK in the run up to Mother's Day. All mums need a bit of recognition every now and then, whether they're in the spotlight or not!"
Last year's winner, Spice Girl Emma Bunton, spoke about how important the award was to her, saying: "This award is extra special as it's voted for by you the British public, and of course is about the most important thing - being a mummy!"

Oprah Winfrey looked elegant in a mulberry coloured lace evening gown at the EE British Academy Film Awards at the Royal Opera House in London. The iconic talk show admitted to being stitched into the gown in a video on Instagram.