Call me weird but I'm a bit of a sucker for the Chipmunk's style of music, their high pitch and close harmonies work for me. When I saw the movie was coming out I was terrified they were going to make it a hip-hop extravaganza due to their "street" versions of their traditional outfits on the movie posters. Luckily this isn't (totally) the case.
The first song is a great version of a hit that had previously become a little wearing and relentless under Daniel Powter. I love this version and it's a full version of what the Chipmunks are singing at the start of the movie. It works really well, though given the great performance it's a travesty that the a capella version from the movie isn't included on this CD.
Another favourite of mine is the interpretation of a song previously recorded by The Chipmunks, "Witch Doctor". The hip hop elements can get a little intrusive at times but in the context of the movie it's plain to see why they put them in and the quality of the rest of the song more than makes up for it. In a way though, it brings me to the point on why I haven't rated any higher than three stars for this album, and this is generous as it is.
Apart from Bad Day and the "Watch out, 'cos here we come!" cartoon theme tune (not on this cd), I don't like every single part of the songs. I love the witch doctor, but parts of it are spoiled by DJ/MC declarations (think "yeah, munks in the hizzle on the M.I.C.!" etc.) and a lack of organic instruments as opposed to sampled beatz. Nor is every song on the album particularly good, and there's at least one rap track. Not including the movie version of Bad Day and including "classic" versions of witch doctor and the Christmas Song is just poor in my opinion.
In all it suffers due to the context of the movie. The movie deals with record companies and producers and making songs that are primarily commercially minded and that means including (as many songs do today) guest rap vocals or musical elements in a track which would be better as a straight rock/pop effort, and The Chipmunks were supposed to be a rock band anyway.