Katy Perry flashes Lady Sovereign

Katy Perry once flashed her vagina to Lady Sovereign.

The 'I Kissed A Girl' singer accidentally showed the rapper her nether regions during a wild party in her hotel room.

Lady Sovereign - real name Louise Harman - revealed to thehothits.com: "I've seen parts of Katy Perry I shouldn't have seen.

"At one of her afterparties she put her pyjamas on and I don't think she was wearing anything underneath. It was like a long t-shirt kind of thing.

"The party was out of control. Just a thing in her hotel room, but yeah I saw something I shouldn't have seen."

US gossip blogger Perez Hilton recently claimed Katy and Lady Sovereign had "locked themselves in a bathroom" at a recent party and were "doing naughty things".

Earlier this month, Katy - who is believed to have reunited with Gym Class Heroes star Travis McCoy following a brief split - said men are "like artichokes" during a performance in New York.

She told the crowd: "Men are like artichokes, it's impossible to find the heart. You can be searching and searching but only get the tough stuff!

"Girls have an intuition, they can tell when a player doesn't have a heart. I'm using my intuition."