Madonna and Justin TimberlakeYou may think this hip-gyrating move belongs in a certain sort of show.

However, it took place in a very public place, between two rather popular singers too.

Yes, Justin Timberlake's leg we'd like you to meet Her Madgesty, aka Madonna's, erm, upper/inner thighs.

Madge was celebrating the release of her new album, Hard Candy, with a show in New York.

She and JT treated the audience to a performance of the single 4 Minutes at the Roseland Ballroom and so was born the meeting of the Trousersnake and the Material Girl's bods.

Mind you, JT does look like he could be giving his trousers a pull-up, and maybe Madge was just offering to help him?

Or maybe not. Whatever the case, this booty shaking gives the likes of Shakira and Beyonce a lil' something to think about.

And may we just say for someone who's turning 50 soon, Madonna knows how to still shake her bon-bon.

And it doesn't look like JT minded being the one to let her show everyone that.