"Happy" is a song written by Pharrell Williams, but I have seen many versions of it on the internet, this one is the strangest. Of course you have to listen to David Lee Roth talk a little about himself, but you can hear a version of David doing it then he sings with a vocal band.

I know that Van Halen are taking it easy, now that David Lee Roth is back in the eye of the public, he takes full advantage of it. So, here he is performing the song.