LONDON: British singer Amelle Berrabah has reportedly quit the Sugababes following a string of arguments in recent weeks - she will be replaced by Eurovision contestant Jade Ewen.

The Get Sexy trio's future was thrown into doubt after founding member Berrabah seemingly disappeared earlier this month (Sep09), missing a string of gigs and public appearances alongside bandmates Keisha Buchanan and Heidi Range.

British tabloid The Sun reported the star fled the band after constant fights with Buchanan, alleging she was bullied to the point of wanting to quit.

Now the publication reports Berrabah, who recently landed a U.K. number one with her collaboration with rapper Tinchy Stryder, has walked out on the group for good.

A source tells the paper, "Amelle has been desperately unhappy for a while. She was going to try and resolve things, but it must have got too much for her. They haven't been able to overcome their row.

"Jade is ready to replace Amelle. She is going to be shooting a video with them in Los Angeles on Monday."

It will be the fourth shift around for the group - Range was drafted in when Siobhan Donaghy quit in 2001, while founding member Mutya Buena left in 2005, making way for Berrabah.