KImberley gone with Simon and Louis voting her off ahead of Alisha (Sharon refused to vote, Dannii votes for Alisha). I didn't watch the show so I've no idea if there's a 'bottom three'.
The order of performance:
http://en.wikipedia.org/wiki/The_X_F...UK_series_4%29
Kimberley performed first and Alisha performed ninth of twelve.
Sharon has done a Louis Walsh in that she's 'quit'. She'll be back next week. Probably.