Nicola would definitely slay Out of Control. I'd be so here for her doing Untouchable solo. Definitely a song suited to her voice. The only song I can't really see her doing very well is Revolution In The Head. Nadine can have Sound of The Underground. Her voice can be really grating sometimes, but I always liked most of her parts from that album. Cheryl can take Tangled Up, because it's soooooooo amazing and perfect for her. Her voice is easily the most recognizable of the five, which would give a new vibe to some of their classics, like Sexy! No No No... and Can't Speak French. Sarah can have Biology, since it's their second best effort as a group and she deserves to have success...at least with Biology as a single. Kimberley can take What Will The Neighbours Say?, because I can't stand like 80% of the songs on it, so I'd only have to waste The Show, Love Machine, Deadlines & Diets and Graffiti My Soul on her.