This week's Trends: fire, flash and dubstep

Each weekday, we at YouTube Trends take a look at the most interesting videos and cultural phenomena on YouTube as they develop. We want take a moment to highlight some of what we've come across this week:

• We studied how interest in dubstep music has risen across 2011.
  
  
• We uncovered on-the-scene footage from Russia's tragic KHL plane crash.
  
  
• We revealed part 2 of our exploration of the three kinds of one-man-bands.
  
  
• We collected bystander footage of the wildfire in Texas.
  
  
• And we learned of the "flash haka" and looked at the creativity behind 10 unique flash mobs from outside the United States.

Check back every day for the latest about what's trending on YouTube at: www.YouTube.com/Trends

Kevin Allocca, YouTube Trends Manager, recently watched "Back for the Future."