INTERVIEWSKaty Perry Kissed Lady Sov -- And She Liked It!

Not only does Katy Perry sing about kissing girls -- she's good at it too, says Lady Sovereign, the British rapper.

Sov got chummy-- and then some -- with Perry recently at a New York City party. Perez Hilton first posted that the duo reportedly spent time in a bathroom stall, but a source close to Sov confirms to SPIN.com that actual galpal lip-locking went down. "[Lady Sov] said Katy was a good kisser," our source relates.

But Katy might be done with her experimental bathroom stall makeout sessions for a while: News surfaced over the weekend that she's mended fences with her ex, Gym Class Heroes singer Travis McCoy.

Not to worry, Sov. Lindsay Lohan is single these days -- and we all know she has a thing for Brits.

Lady Sov and Katy Perry