The interactive piece is for the song 'Happy' which featured on the Despicable Me 2 Soundtrack.
The video which was shot in real time, features a lot of random people dancing and includes cameos from Steve Carell, Magic Johnson and Jimmy Kimmel.
If you want to watch the full 24 hours, you can find it here at 24hoursofhappy.com.
This song will definitely stick with you all day. I lasted 20 minutes first time around, how long can you last?
