George quit music to focus on art and David asked him to work on three of his most famous album covers -- "David Bowie," "Hunky Dory" and "Ziggy Stardust and the Spiders from Mars." He was invited along on the "Ziggy Stardust" tour to America, crossing the Atlantic on the QE2 liner, where David astonished other diners by turning up for dinner in full Ziggy costume.
Underwood recalls the reaction of the fans on that pivotal tour. "The audience were just standing with their mouths open looking at him thinking, 'What am I seeing here?' It was interesting seeing that from the ground floor every night."
After achieving huge success as a solo artist -- "Frampton Comes Alive" remains one of the best-selling live albums in music history -- Peter Frampton suffered a series of setbacks which left his career in tatters, until David invited him to record and tour with him in the 1980s.
"I can't thank him enough for asking me. There are so many other people he could have asked. But he was very aware of what had happened to me as far as my musical credibility disappearing because of the pop icon deal that happened to me. It was very special of him to see that and take me back to places that I couldn't fill any more ... those kind of venues and take me around the world and reintroduce me as the guitar player and I still owe him."
Peter went on to win a Grammy for his 2006 album "Fingerprints" while George has developed a career in painting which has included exhibitions at London's prestigious Royal Academy. All three remain firm friends today and plan to download the new album.
Underwood says he wasn't concerned about Bowie's 10-year absence from recording. "I'm sure he'd let me know if there was anything wrong. There's all this speculation about his health but don't worry folks, he's fine -- the album proves it doesn't it?"
"A lot of people have copied what he has done, in terms of re-inventing himself all the time, just when you think he's got him figured out," says Frampton. "He's an actor, he's a musician, he's an artist and he puts them all together and does what he wishes when he wishes and he's very confident about what he does. But he's the same guy I went to school with."