My son is usually a shy boy, but when he's not LOOK OUT!
He's been hearing these songs performed by The Bobs, an acapella group. Our friends have The Bobs' music playing in their car, and now my son sings some of the tunes.
He bravely agreed to be recorded doing a performance, and the following film resulted. It just killed me with cuteness, but I'm biased. Enjoy!