Making an encore appearance in theatres Christmas Day, Alvin and the Chipmunks return for another go-round of singing, dancing, and random comedic destruction. Featuring Jason Lee and Justin Long as well as everyone's favorite singing rodents, the three-part harmony act known as the Chipmunks will have to tangle with a whole new set of circumstances, including school, and their first ever meeting with their female counterparts, the Chipettes. Brace yourselves for the trailer. There are so many things that could be said about this that to say them all would make this video far longer than YouTube would allow. Judging by other commentary, most of them would also violate YouTube's terms of service policies. So are you happy to see the Chipmunks back in action? Or do you wish they'd long since been involved in a tragic accident involving a gas main and a large pile of acorns? Hit the comments section below to weigh in, and thanks for watching! Alvin and the Chipmunks: The Squeakquel Cast: Jason Lee, Justin Long, Matthew Gray Gubler, Jesse McCartney, Zachary Levi Alvin and the Chipmunks: The Squeakquel movie trailer provided by 20th Century Fox. Alvin and the Chipmunks: The Squeakquel opens in US theaters on December 25th, 2009. Alvin and the Chipmunks: The Squeakquel is directed by Betty Thomas.