During her live performance of "Can't Be Tamed" on Britain's Got Talent last night, Miley kissed a girl -- and she liked it!

Wearing a sexy unitard, Miley seems intent on smashing all traces of her Hannah Montana image, and this latest stunt only furthers her goal of announcing to the world that she is a fully grown adult!

Ok, she seems to stop short of pulling a full on Adam Lambert, but check it out right after the one minute mark!