I've never seen Yo Gabba Gabba, but apparently they released some album with songs by indie bands like the Shins, of Montreal, Chromeo, I'm From Barcelona, et al.
Kids songs.
Not sure if they're mimicking Matt Pryor leaving the Get Up Kids for the Terrible Twos to write children's songs, but it's weird hearing songs about washing your hands from the guys who do "Needy Girl".