Urijah Faber has many reasons to be happy.

One of them is the fact that his sister, Michaella, has fully recovered from a near-fatal car accident.

To celebrate just how happy he is, Faber appeared in the Pharrell Williams song “Happy,” which the artist used for an hour-long music video.

“The California Kid” appears at the 36-minute mark and really gets down with his bad self. He dances around the street for over four minutes, with his sister joining him about halfway through.