Alexandra Burke + The Saturdays + Chipmunk + Dionne Bromfield

The 23-year-old winner of X Factor's fifth series teams her skimpy costumes, gyrating and vocal acrobatics in a pop R&B-stylee with the over-hyped Spice Girls for the noughties, TS. Plus youthful grime-pop hitmaker Chipmunk and retro-soul goddaughter of WInehouse, Bromfield.