Alvin and the Chipmunks 4: Fun on the Moon is a 2013 American family comedy film. The film stars Jason Lee and David Cross. It will be distributed by 20th Century Fox, and produced by Regency Enterprises and Bagdasarian Productions. The film is a sequel to the 2007 "Chipmunks" film, 2009 "Squeakquel", and 2011 ["Chipwrecked"] . The film is set to be released during December of 2013 in 3D.
The two bands, the Chipmunks and Chipettes, are reaching the top of the charts when the decision of two chipmunks brings the possiblity of crashing it all down. Alvin (Justin Long) and Brittany (Christina Applegate) are taking a step onto their own path as they pursue a new career with just each other. This all begins after an agent approaches them and makes the offer. More chaos comes soon after the two chipmunks realize that the offer wasn't what they thought it would be and an old enemy rises.==
- Justin Long as Alvin Seville (speaking voice)
- Matthew Gray Gubler as Simon Seville (speaking voice)
- Jesse McCartney as Theodore Seville (speaking voice)
- Christina Applegate as Brittany Miller (speaking voice)
- Anna Faris as Jeanette Miller (speaking voice)
- Amy Poehler as Eleanor Miller (speaking voice)