Luke Bailey

Luke is currently starring in BBC One's top rating Saturday night drama, Casualty, in which he plays Healthcare Assistant, Sam Bateman, the charismatic son of Tess. Prior to this he starred in CBBC's U-Get-Me and an adaptation of Jacqueline Wilson's Illustrated Mum. He loves music and sings as well as playing the bass guitar in a band with two friends. But he does suffer from nerves - when Luke performed a song on BBC Children in Need last year he was physically sick before going on stage - although he felt much better when the music started.

Natasha Hamilton

Prior to launching her solo career in April 2005, Natasha was one third of the most successful girl band since the Spice Girls - Atomic Kitten - who sold over seven million records and scored four platinum albums in their six years together. Last year Natasha reached the final with her partner Mark Monaghan but they were pipped to the trophy by Sian Reeves and Russell Watson.