Background: The Sugababes are a British girl group formed in 1998 by Siobhan 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.
Context: The Sugababes were formed in 1998 by All Saints manager Ron Tom. Siobhan Donaghy and Mutya Buena, both aged just 13, had been signed as solo artists, but decided to work together after performing at the same showcase. While working in the studio, Buena invited her best friend Keisha Buchanan to watch them. Manager Tom decided the three girls were to be a trio, likening their different appearances to the United Colors of Benetton campaign. Originally dubbed the Sugababies, the group's name was tweaked to Sugababes when they were signed by London Records to give the group a more mature image.  The group's debut single, "Overload", peaked at number 6 on the UK Singles Chart in 2000 and was nominated for a BRIT Award for Best Single. The group co-wrote most of the tracks on debut album One Touch with the help of All Saints producer Cameron McVey. One Touch peaked at number 26 on the UK Albums Chart. The album produced three more top 40 hits--"New Year", "Run for Cover" and "Soul Sound". The sales of One Touch did not meet London Records' expectations, and they dropped the group in 2001. It was later certified gold by the BPI and had sold 220,000 copies in the UK by 2008 according to Music Week.  During a Japanese promotional tour in August 2001, Donaghy left the group. She stated initially that she wanted to pursue a fashion career, but was eventually diagnosed with clinical depression amid reports of in-fighting amongst the group's members. Donaghy later stated that she was forced out of the group by Buchanan and called Buchanan the "first bully" in her life. Former Atomic Kitten member Heidi Range was announced as Donaghy's replacement.  Having already started work on a second album with new member Range, the trio looked for a new record label, eventually signing to Island Records. Their first single on the new label, "Freak like Me" scored the group their first UK number 1 single. Follow-up single "Round Round" also debuted on top of the UK Singles Chart and peaked at number 2 in Ireland, the Netherlands and New Zealand. Both singles were certified silver by the BPI. On the back of the success of the singles, the group's second album, Angels with Dirty Faces, debuted at number 2 on the UK Albums Chart and was later certified triple platinum, selling almost a million copies in the UK alone. It is to date their highest-selling album. In the UK, the third single from the album, a ballad titled "Stronger", gained the girls their third consecutive top ten hit in their native country. The track was released as a double-A side with "Angels with Dirty Faces" in the UK, the latter song chosen as the theme tune to The Powerpuff Girls Movie. A fourth single, the Sting-sampling "Shape", made the top ten in the Netherlands and Ireland in early 2003.  The group's third album, Three, was released in late 2003 and reached number 3 on the UK Albums Chart, earning the group a BRIT Award nomination for Best Album. Certified double platinum, it has sold 855,000 copies to date. The album was preceded by lead single "Hole in the Head", which became the group's third UK number 1 single. It also reached number 2 in Ireland, the Netherlands and Norway, and became the Sugababes' first (and to date only) single to chart in the United States, reaching number 96 on the Billboard Hot 100. Follow-up single "Too Lost in You" appeared on the soundtrack to the film Love Actually and went top ten in Germany, the Netherlands, Norway and the UK. The album's third single, "In the Middle", was released in 2004 and garnered the group another BRIT Award nomination for Best Single; like its successor, the ballad "Caught in a Moment", it went to number 8 on the UK Singles Chart. In 2004, the trio sang on the Band Aid 20 remake of "Do They Know It's Christmas?", which went to number 1 in the UK in December.  Around this time, the group's perceived "moodiness", alleged backstage catfights, and press junket tantrums were tabloid fodder in Britain. They were surrounded by continuous rumours of in-fighting within the group and constant split reports. Rumours suggested that Buchanan and Buena had bullied Range, although Range herself repeatedly denied such allegations; Buena later admitted that she "just didn't talk to her" when she first joined. Buchanan claimed there was only one serious fallout between herself and Range during a 2004 gig in Dublin, regarding Britney Spears' "Toxic".  After a hiatus, the Sugababes released their thirteenth single, "Push the Button" in October 2005. The song debuted at number 1 in the UK and remained in the position for three consecutive weeks. It also peaked at number one in Ireland, Austria and New Zealand, and reached the top three across Europe and in Australia. Certified silver in the UK, it was later nominated at the BRIT Awards for Best Single. Parent album Taller in More Ways became the group's first UK number 1 album. The group was number 1 on the singles, album, airplay and download charts simultaneously, making them the first girl group to achieve such a feat. Taller in More Ways was certified double platinum in the UK.  Following an apparent illness that prevented Buena from promoting follow-up single "Ugly", it was announced on 21 December 2005 that Buena had left the Sugababes. According to an announcement on their official website, Buena's decision was based purely on personal reasons following the birth of her daughter. Amelle Berrabah joined the Sugababes in late December 2005, having been chosen by the group's management to replace Buena.  The third single from Taller in More Ways was a re-recorded version of "Red Dress", which was released in early 2006, and gave the Sugababes their third consecutive top five hit from the album, entering the UK Singles Chart at number 4. Berrabah re-recorded three of the album's twelve tracks and co-wrote a new song with Buchanan and Range named "Now You're Gone". The tracks appeared on a re-release of Taller in More Ways that reached number 18 on the UK Albums Chart. The fourth and final single from Taller in More Ways was "Follow Me Home", released only in the UK in June, where it charted at number 32.  In mid-2006, the group returned to the studio to record two new tracks for their first greatest hits collection, titled Overloaded: The Singles Collection. The lead single from the compilation, "Easy" peaked at number 8 on the UK Singles Chart, whilst the compilation album, released in November 2006, peaked at number 3. The album, certified platinum by the BPI, has sold 598,000 copies.
Question: Was she replaced?. Whats the answer?
Amelle Berrabah joined the Sugababes in late December 2005, having been chosen by the group's management to replace Buena.