The Saturdays: 24/7 (UK)

Frankie Sandford (or Francesca, if you're her mum) - the one with the infamous pixie hair style - is only 21 but she's been living the pop star lifestyle for years.

At 12 she became part of S Club Juniors, juggling TV studios and home tutoring for five non-stop years. "I see it as my apprenticeship for The Saturdays," she says, even if she readily admits it's all a big blur. "Sometimes I see old clips of us and I honestly have no idea that even happened."

When S Club ended Frankie went through what she calls her 'rebellion phase'. "I just bummed around," she says. "I got a job in a bar - which was really fun - and in a shop - really boring - and went through a little emo phase. I cut my hair a million times, changed the colour, went to few festivals and did some moshing."

Hectic as The Saturdays schedule is, Frankie still finds time for the odd festival. "I've just bought a tent this afternoon," she smiles. "Every year I go and leave it behind, it's too much effort. This is my fourth!"