Gillian McKeith (You Are What You Eat) had guts but she really couldn't sing, preferring to shout/talk her way through the Etta James classic I Just Wanna Make Love To You. She has a face like a burst couch.
Whoever decided to make Uptown Girl a song for people (sung by 4 chefs including Jean-Christophe Novelli and Paul Rankin) should be shot - they were appalling too - like drunks at a wedding IMO. They were out of tune and "danced" very badly.
James Hewitt and Rebecca Loos - bloody hell... again, bad move for making Addicted To Love a duet, all James did was TALK through the song - Loos was pratically bursting out of her dress.
However, I was impressed with Matt Stevens (rugby player) who sang Mack The Knife, he was actually rather good, Chris Moyles (!) wasn't bad either! He sang (Ain't that A) Kick In The Head - another swing/jazz song.
Full marks for attempting dancing I guess, though it looked a bit odd

