Ke$ha strikes a bum note in unflattering underwear and trashy ripped clothes

Of course, this was no accident as the offender in question is Ke$ha, the American pop singer who has made a name for herself championing the trailer trash style.

But still, it wasn’t as if the garments on show today were doing her any favours as she performed on stage at The Beale Street Music Festival in Memphis.

Clad in a pair of revealing black knickers, teamed with fishnets, the 24-year-old singer appeared to be lacking a little support in the derrière department as she jiggled around on stage.

Ke$ha, who co-wrote Britney Spears’s latest song Til The World Ends, teamed her looked with a torn American flag T-shirt, boots and tights with apparently purposeful rips.

She was joined on stage by scantily-clad male backing dancers as she performed some of her hit tracks, complete with her shock of blue lip stick.