Become XY's friend at www.facebook.com/XYUnlimited Pop rockers XY Unlimited take on Pomplamoose's brilliant cover of the Beyoncé song. We thought we'd try this one a cappella. If you don't know Pomplamoose, head over to http://www.youtube.com/pomplamoose. And if you don't know XY, find us at www.youtube.com/xyunlimited.
Filmed by Tim Hahn (www.timmyhahn.com and www.extralives.tv)