Ke$ha hooks up with Calvin Harris?

Ke$ha has hooked up with Calvin Harris.

The Sun reports that the two got together when Calvin was DJing at Rihanna's gig in Australia.

A source said:' They were all over each other and didn't care who was watching.

'Ke$ha is a bit of an animal but Calvin reckons he can handle her.'

The two have known each other since Ke$ha supported Calvin on tour a few years ago.