Is that the Chipmunks?

I am sitting her trying to catch up on my email, and all of a sudden I hear the song "Had a Bad Day" being sung by the Chipmunks. I snicker and continue to read my email. But then ... I hear a new song begin. It is "Crank Dat Soulja Boy". Soulja Boy by the Chipmunks ... It's time you heard it for yourself. http://www.youtube.com/watch?v=3h2W4k4bDio&feature=related