Justin Timberlake and Beyonce dancing Single Ladies How can Beyonce keep a straight face? Justin is hysterical! 2013-08-18 19:00:00 - Music Video More Posts Muddy Waters Band | Got My Mojo Working at Newport (1960) Quantum Computer Revolution Will Change Everything EbSynth | Transform Videos by Painting over a Single Frame Richard Hammond | Engineering Connections: Space Shuttle Wham! | Young Guns | Go For It! (1982)