Ex-Sugababe Mutya: 'Keisha isn't a bully'

Ex-Sugababe Mutya Buena has defended Keisha Buchanan against claims that she has been bullying Amelle Berrabah.

The Celebrity Big Brother star, who quit the group in 2005 and was replaced by Berrabah, blasted recent reports suggesting that there is in-fighting within the 'Get Sexy' band.

"I would not say Keisha is a bully, I never left because of her, I left because I wanted to," Buena told ITN.

"I think it's overexaggerated. I don't think they are breaking up. It's just good publicity."

Meanwhile, former Mis-teeq singer Su-Elise Nash stepped in to defend Buchanan, saying: "I think it's a big hype that has been made out of nothing. Keisha is not bullying her. She's a good girl and a good friend of mine."

Sugababes are currently in Los Angeles shooting the video to new single 'About A Girl'. New album Sweet 7 follows in November.