She joined the group Six in 2001, but was forced to leave the group because she was underaged.
She released five consecutive platinum-selling pop albums as a member of Girls Aloud.
She was engaged to Jason Bell. The couple separated in May 2011. The couple reunited and welcomed a daughter, Anaíya, in 2014.
She became bandmates with Sarah Harding when Girls Aloud was founded in 2002.