Sweet 7 is the seventh and final studio album by British girl group the Sugababes, released on 15 March 2010, by Island Records. It marks as the final release from the fourth line up following them splitting in 2011. Production for the album began in April 2009 and was completed in January 2010. Sweet 7 is the only release since the controversial departure of Keisha Buchanan, who was replaced by 2009 Eurovision Song Contest entry Jade Ewen in September 2009. As a result of the group line-up change, Sweet 7 was re-recorded to feature the vocals of new member Ewen and for the removal of former member Buchanan's vocals. As a result, this is the only album that features none of the original members.