Desc: UK Music Hall of Fame: Biggest Selling Artists of the 21st Century: Directed by Martin Callanan, Stephen Franklin, Matthew Gillbe. With Dermot O'Leary, Christina Aguilera, John Aizlewood, Anastacia. A countdown of the biggest-selling UK album chart acts between January 2000 and October 2005, featuring interviews and analysis from the artists, producers, critics and celebrity fans.