Working her way through pop's great and good, Sia is now collaborating with street-squatting singer of song Ke$ha.
The pair were photographed in the studio and the photograph, a possible future entry for Viz's Up The Arse Corner, was tweeted to the world by Sia with the caption: "Two girls are better than one."
Dr Luke was included on the tweet so one can only assumed he's milling about somewhere too, making the whole thing really quite exciting indeed.
Sia also asked Ke$ha: "Shall I bring you a dog or what?" but we're not sure what's that's about. Poor dog.
