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 Band Aid 20's 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