This is Jens' latest activity to keep him active and healthy (without the aid of best weight loss pills). He copied it from the Red Wiggle - Murray. He always have this guitar when he's watching video. It's funny how kids emulate adults. He particularly likes the song Murray's Guitar Saved the World. It's one of the piece in the Hot Poppin' Popcorn (which Jens called Popcorn Popcorn).