- We saw evidence of a unique weather event in Oklahoma.
- We saw how an unusual dance trend from a few years ago made a comeback.
- We watched how Vancouver Canuck fans got ready for and reacted to game 7 of the Stanley Cup.
- We noted that a few new YouTube channels reached the 1 million subscriber club.
- We ranked the most-viewed videos from the NBA playoffs.
- We checked in on the most-watched previews from last week's E3.
- We witnessed aftershocks in New Zealand, accidentally captured on camera.
- And Katy Perry debuted her cameo-filled new video for "Last Friday Night."
Check back every day for the latest about what's trending on YouTube at: www.YouTube.com/Trends