"The world famous singing pre-teen chipmunk trio return to contend with the pressures of school, celebrity, and a rival female music group known as The Chipettes."
"Pop sensations Alvin, Simon and Theodore end up in the care of Dave Seville's twenty-something nephew Toby. The boys must put aside music super stardom to return to school, and are tasked with saving the school's music program by winning the $25,000 prize in a battle of the bands. But the Chipmunks unexpectedly meet their match in three singing chipmunks known as The Chipettes -- Brittany, Eleanor and Jeanette. Romantic and musical sparks are ignited when the Chipmunks and Chipettes square off."
(Above taken from this page).
The movie was fantastic, but not quite as good as the first one. Still, it was good enough that I watched it several times, so it can't have been too bad, can it? Seriously... It is a pretty good movie. Just - as I said - not quite as good as the first one. But that's how it often works witth sequels, isn't it?