Ok, another Yo Gabba Gabba plug here, but I love, love, love this video. The animation, the ingenius imagery of listening, the song...everything about it. My kids love it too, probably because of the repeated viewings, and now it's on their lullaby playlist.
'Listen' by Paco! on Yo Gabba Gabba
FYI: the YGG site won't let you use the back key to return here, so if you want to come back, a right click opening the link in a new window or tab is best.
You can find out more about the animation artist and the song on Yo Blogga Blogga