One thing they really enjoy is the praise and worship time.
Katie usually takes Kara with her when she drives the boys to church and I guess she stays there for a little while with Kara to watch the praise. And because of that, Kara picked up some praise songs and even motions.
Introducing Han trios singing "Out God is a Great Big God" with motions!
and here's another video for this song with motion in case you want to hear the original song and learn the motions: