Interesting trend. My 4 yr old daughter LOVES the Beatles. It really started when I would watch a segment of
Anthology each night when it came out. She watched it on and off with me while playing. Now, when she asks for the Beatles in the car, I know she means
Magical Myster Tour and specifically "Hello Goodbye" and others. Once she asked for the "I am the Eggman" song.

She walks around singing it - its hilarious!
She loves the songs from
The Sound of Music and can sing a lot of them word for word without them being on. I don't have this in the car but I should.
Any kids CD set of goofy kids songs will do as well.
She LOVES Wilco's
Yankee Hotel Foxtrot. She knows a lot of the words. I listened to it every day last summer it seems so she got the trickle down effect of realizing Jeff Tweedy's brilliance.
