From the Eels website:

The for Shrek 2 has a special feature about the film’s music that includes some clips from the recording of the EELS track “I Need Some Sleep,” as well as comments from E, , and others who did music for the film. Children around the world can be heard screaming for their mommies when EELS bassist Koool G Murder appears on screen. The to this little-seen film is sure to be an obscure and hard to find collector’s item.