It's here! Okay, so Alvin and the Chipmunks: The Squeakquel isn't actually hitting theaters until Christmas, but the trailer is officially out! Jesse McCartney will reprise his voiceover role as Theodore, and other big names have joined him as well -- House Bunny's Anna Faris as Brittany, He's Just Not That Into You's Justin Long as Alvin, Christina Applegate as Jeanette, and Good Luck Charlie's Bridget Mendler as Becca.

Alvin, Simon, and Theodore will be dealing with their female rivals, The Chipettes, school, and being celebrities in the Squeakquel. Check out the trailer below: