At Ultra Music Festival this past weekend, Jack U's set saw surprise special guests Diddy and Justin Bieber to close out the set. Justin Bieber joined Skrillex and Diplo on the main stage to perform their collaboration, "Where Are U Now." Their performance together came after they teased his potential appearance at Ultra on Twitter last week, when the three made plans to "go to the beach." South Beach, that is, and sure enough the Biebs made his appearance, which was streamed live via "Ultra Live" for the world to see.

What viewers did see, however, was that Bieber was lip syncing, and not doing a very good job at hiding it. He also showed off some of his dance moves, which were also not very good. But now, we can enjoy these GIFs of him dancing, perfect for a variety of situations. Check out the GIFs below, and watch the video of the performance above.