The Sugababes are an English pop girl group, formed in 1998 with founding members Siobhán Donaghy, Mutya Buena and Keisha Buchanan. Their debut album, One Touch, was released in the UK through London Records on 27 November 2000. The album achieved moderate success, peaking at number 26 in April 2001 and eventually being certified Gold. In 2001, Donaghy departed the group amid rumours of a rift with Buchanan and the group were dropped by their record label. With the introduction of Heidi Range, the group began to experience a higher level of commercial success whilst keeping the critical acclaim they had achieved with their debut album. They released three studio albums before Buena announced her departure in December 2005, leading to Amelle Berrabah being brought in to replace her. Following the release of their first greatest hits album, the new line-up released two studio albums. In September 2009, after 11 years in the Sugababes, Buchanan, the final original member, was replaced by former UK Eurovision entry Jade Ewen. Range, Berrabah and Ewen released the group's seventh studio album, Sweet 7, in 2010, after which they signed to RCA Records, before announcing an indefinite hiatus in 2011. In 2013, Ewen confessed that the Sugababes had split two years earlier. The original line-up of the band reformed in 2011, under the new name Mutya Keisha Siobhan.
In 2006, British Hit Singles & Albums named the Sugababes as the most successful female act of the 21st century with six UK number one singles and eighteen UK top ten hits. They racked up six number-one singles, "Freak like Me", "Round Round", "Hole in the Head", "Push the Button", "Walk This Way" and "About You Now"; the Spice Girls are the only British girl group to have had more. They also released five UK top ten albums, four of which reached at least platinum certification in the UK, and have been nominated for six Brit Awards, winning one for Best British Dance Act in 2003. They have been a long-term fixture in the British tabloids due to their several line-up changes and alleged group infighting.