CBBC Newsround Online takes a look at the eight children who make up S Club 8.
Stacey Age: 12 From: Blackpool
Stacey almost didn't turn up for the audition, as her mum didn't want her to get her hopes up.
But she sailed through to the final round and cried when she was chosen for the band. Her biggest dream is to be the voice of a Disney character.
Calvin Age: 13
Calvin is a hot-rockin' nu-metaller whose fave bands include Linkin Park and Offspring.
Before being chosen for S Club 8 he'd only appeared in school plays.
When not rehearsing with the band, Calvin's normally on his mobile phone or street skating.
Frankie Age: 13 From: Essex
Frankie's no stranger to showbiz.
She goes to the same school as the cousin of Jo in S Club, and has appeared as a cheerleader on SM:tv. Described as pink, girly and flirty, Frankie admits to being a bit of a shopaholic.
He may be the smallest in the group but he's also the most talkative!
He was chosen for the group after sending in a video of himself dancing and singing.
The celebrity he'd most like to go on a date with is Jennifer Lopez.
Rochelle Age:12 From: Romford
Rochelle admits to being the group's resident nutter!
Like Frankie she's also no stranger to showbiz, having appeared in Whistle Down the Wind in London and done some modelling.
She's dreamt about being a pop star all her life and takes her teddy, Squidge, everywhere with her.
Hannah Age: 11 From: Newbury
Also known as "Dimples" from when she played the Artful Dodger in a school play, Hannah has always dreamt of stardom.
She's a big fan of the movie Billy Elliott and Coyote Ugly.
Aaron's a surf dude who likes to spend the summer months on the beach.
He's only ever had one bad accident on his board when he broke his arm and now it sticks out a bit!
Aaron's known as the brainy one of the bunch and his fave food is tomato ketchup.
From: Chadwell Heath
With her long blonde hair, Daisy's nickname is Barbie.
She's always wanted to be a pop star and has spent many hours on the stage touring with the show Annie.
She also admits to having a huge crush on EastEnders star Jack Ryder.