The rumours have already begun over who is to blame for Keisha's departure. So was it a clever plot by Heidi?

The Sugababes just can't seem to hold down their members, and as Keisha walks after 11 years of being a Sugababe, the blame has been pointed towards fellow band mate Heidi.

Rumour has it that Heidi plotted with newest addition Amelle in a secret deal to get rid of Keisha for good, and the pair approached former Eurovision contestant Jade Ewen to replace her.

The Sugababes in happier times.

Despite changing their line-up for the third time, the girls are currently putting the finishing touches to their new album - minus Keisha's vocals. Jade is currently putting in emergency studio time to replace the ex-member's vocals, days after Keisha left. Ouch.

However, Keisha has said on Twitter, "Although it was not my choice to leave, it's time to enter a new chapter in my life. I would like to state that there were no arguments, bullying or anything of that sort that led to this. Sometimes a breakdown in communication can result in many things."

Let's hope the Sugababes line-up doesn't change again before their new album Sweet 7 is released on November 23rd.

What do you think of Keisha's exit? Who do you think is to blame? Leave your comments below.