People plus suggested gimmicks
Tabby - Addicted To Love

Noooooo. I don't think this will work! Gimmick - Obviously, 'The Band' of scraped hair, trowled made up, sexy women playing air instruments.
Voices With Soul - Amazing Grace. Come on Louis! Zzzzzzzzzzzzzzzzzzzzzzzzzzzzz. Gimmick - I'm Scottish and I love the bagpipes, but they won't be welcome here
Cassie - Say A Little Prayer. Fab choice. She'll do well. Gimmick - Can't think of a gimmick unless Cassie pulls the Arch Bishop of Canterbury out from the audience (of COURSE he'll be watching the X Factor).
Roweta - Somewhere Over The Rainbow. Tsk. I would have preferred something a bit more adventurous and less safe for Ro. Gimmick - Minnie the dog will be the extra on stage with Louis and Kate as munchkins (well Kate is rather orange these days).
2 To Go - I've Had The Time Of My Life. Too obvious. Emma won't manage. Gimmick - Bruce Forsyth and his wife to be doing the flamenco in the background since Patrick Swaze won't be available.
Steve - Smile. Nooooooooooo. Not a NKC song

. I love NKC and I don't think Steve (sorry Sals) will manage this too well. Gimmick - No props, just a piano, maybe?
G4 - Hit Me Baby One More Time. OMG. Maybe awful, may surprise us. I just CANNOT believe that the choice can be THAT bad, so I'm trying to believe that humans are the intelligent animals that we are supposed to be

and that just maybe, this may be refreshing?
Gimmick - rubber dolls of Christina Aguilera and Justine Timberlake crying with jealousy in the audience.