If there was an award for the best way to close out an awards show, it would definitely go to LMFAO!

Last night at the 2011 American Music Awards, the Hip-Pop duo performed their smash hit single “Party Rock Anthem” alongside teen Pop sensation Justin Bieber as they closed out the show.

After LMFAO and the Biebs finished shuffling, actor David Hasselhoff, Will.i.am, and YouTube sensation Keenan Cahill, joined them to finish off the performance with the group’s latest single “Sexy And I Know It.”

Watch the highly entertaining performance below: