Christina Aguilera’s long-awaited new single has been leaked online, and it seems the Dirrty singer has gone back to her old ways.

The single, Your Body, sees the Genie in a Bottle singer go for a club-inspired number with plenty of synth and steamy lyrics.

Posting the leaked demo version on his website, celebrity blogger Perez Hilton said: ‘WHOAHHH GIRL!!! There are some SEXplicit lyrics in this song…if we are hearing correctly!’

The Voice judge teamed up with Swedish hit-maker Max Martin on the track, known for his chart topping success with Britney Spears’ Baby One More Time and Oops...I Did it Again! as well as Katy Perry’s I Kissed a Girl and Hot 'n' Cold.

Aguilera’s previous album, Bionic, was received with mixed reviews by critics in 2010.