Natasha Hamilton grew up in the Kensington area of Liverpool, and started singing and performing from the age of 12 in the Starlight Show Group. Hamilton says she was inspired by Marvin Gaye, Barry White and Quincy Jones. After Heidi Range left the early Atomic Kitten, Hamilton was offered the opportunity to replace her.

Hamilton dated Fran Cosgrave, a club owner and former bodyguard of Westlife. Natasha announced in April 2002 that she was pregnant, but she had no intention of leaving the group and wanted the scheduled 2002 tour to continue. She was featured in the video "The Tide Is High" with her last duty being the 2002 Party in the Park before finally going on maternity leave. On August 24, 2002 she gave birth to a boy, Josh Cosgrave. The pair split shortly after.[citation needed]

Hamilton was awarded Rear of the Year in 2003, the same year as the release of Atomic Kitten's third studio album, Ladies Night

Hamilton decided to take her baby with her on the 2