Sugababes have claimed that they would split if another member ever left the band.

The girl group are currently on their fourth line-up and have no original singers left following the ousting of Keisha Buchanan last September.

In an interview with Company magazine, the trio's longest-serving star, Heidi Range, confirmed that another shake-up for Sugababes is out of the question. "We've said if something happened again we wouldn't carry on the band with someone else. This is it," she said.

Sugababes are currently promoting new album 'Sweet 7', which is released next Monday (March 15) and is the first to feature latest member Jade Ewen.

Listen to the track 'Wait For You' off the new album here: