THIS sexy celeb is renowned for her need to shock – usually by flaunting her bod in revealing outfits.

But now outrageous singer Ke$ha has raised the shock bar even higher, by Tweeting a pic of herself squatting by the side of the road and taking a leak.   The pants-down pic even taunted police to 'come and get me if you can find me.'

The 25-year-old 'Tik Tok' singer says she was stuck in traffic and couldn't wait.

She could have been charged with a $270 fine under California law.