Penguins Rapping Justin Timberlake's 'SexyBack' in 'Happy Feet Two' Teaser Trailer

First teaser trailer for "Happy Feet Two" has gone online. The video, courtesy of Apple, features a host of cute penguins dancing and singing. They are also rapping to Justin Timberlake's "SexyBack", which is reworded "Fluffy Back".The sequel of "Happy Feet" revolves around Mumble, the Master of Tap. He and Gloria now have a son named Erik, who is struggling to find his own particular talents i...