Justin Timberlake Brings Sexy Back...In A Leotard And High Heels: Video

Justin Timberlake embraced his feminine side when he slipped on a leotard and a pair of high-heels to go dancing with Beyonce.

The singer showed off his cheeky side to promote the bootylicious diva's latest video Single Ladies.

But fans - and girlfriend Jessica Biel - needn't worry.

The Sexyback singer's outrageous outfit was part of a skit for U.S. comedy show Saturday Night Live.

In the real Single Ladies video, Beyonce and a band of doppelganger female dancers wriggle their hips in a high-energy routine.

But in the new 'video', she appears less-than-impressed with Justin's camp efforts.