Blimey, just had a look at their website. Some pretty impressive musicians using them. Bet they don't come in cheap? Not sure I would have David Beckham on my list :-)

John Abercrombie
Stanley Accrington
Ian Anderson
Joe Beck
David Beckham
Vanessa Bennett
Pete Berryman
Eric Bibb
Tony Bird
Ritchie Blackmore
Sam Bracken
Dave Bronze
David Brown (Billy Joel)
Sean Cannon
Martin Carthy
Michael Chapman
Stanley Clarke
Pete Coe
Christine Collister
Stewart Copeland
Brian Cullman
Lucy Cowan
Brian Cullman
Phil Cunningham
Al Di Meola
Barbara Dickson
Sal DiTroia
Keith Donnelly
Troy Donockley
John Doyle
Robin Dransfield
Mark Egan
John Entwistle
Archie Fisher
Chris Foster
Bob Fox
Vin Garbutt
Merri-May Gill
Gordon Giltrap
Jed Grimes
Bridget Guest & Rot Wilcox
Mike Harding
Roy Harper
Fran Healey
Mike Heron
Robyn Hitchcock
John Hobson
Steve Howe
Ron Jackson
Mick Jagger
John James
Bert Jansch
Mick Jones
Nic Jones
Laurence Juber
Frissi Karlsson
Nigel Kennedy
Pat King (Manfred Mann)
Andy Latimer (Camel)
Jeff Layton
Howard Lees
Chris Leslie
Jez Lowe
Stu Luckley
Julie Matthews
Ruari McFarlane
Pat Metheny
Phil Murray
Marilla Ness
Ken Nicol
Joe Pasquale
Dave Pegg
David Qualey
Phil Ramone
Elliot Randall
John Renbourn
Cliff Richard
Keith Richards
Mike Richmond
Tony Rose
Arlen Roth
Pat Ryan & Ken Howard
Martin Simpson
David Spinozza
Sting
Malcolm Stitt
Bridget St John
Andy Summers
Peter Tosh
Pete Townshend
Eddie van Gasse
David Walters
Chris While & Julie Mathews
Rick Wills (Foreigner)
Roger Wilson
Bernard Wrigley
Bill Wyman
Martin Wyndham-Read