She found fame with Girls Aloud and X Factor, and more recently, she debuted on the West End. Singer Cheryl Tweedy has been in the spotlight since winning ITV's Popstars in 2002.
But while her music career has been largely successful over the years, her high-profile romances and private life has been much more of a tumultuous rollercoaster.
The Geordie is celebrating her milestone 40th birthday today, as a mum-of-one to six-year-old son Bear, who she shares with former One Direction boyfriend, Liam Payne.