John Barrowman with The Puppini Sisters and Capital Voices, the cast of Spamalot, Omid Djalili, the cast of The Sound of Music, Sugababes, Meat Loaf, Jamelia, David and Dania, Jason Byrne, Take That, the cast of Wicked, Barry Manilow, the cast of Avenue Q, James Morrison, Jump, Ken Dodd, Rod Stewart, Michael McIntyre.