Timberlake becomes Beyoncé's dancer

Justin Timberlake has donned a leotard and high heels to perform as a backing dancer in a spoof version of Beyoncé's 'Single Ladies'.

Timberlake was joined by two US comics to dance behind the singer for US TV show Saturday Night Live.

In the song's real video, Beyoncé is flanked by two female dancers who perform a high-energy routine. During the skit, she voiced her confusion at the presence of the leotarded males, who seemed more keen to show off their 'grinding' ability than any choreographed moves.

Beyoncé and Timberlake previously worked together on 'Until The End Of Time', from his LP FutureSex/LoveSounds.