It’s the Trending Now Top 5 Countdown for August 22nd, 2012, where we gather the hottest and most outrageous YouTube videos hitting the Web right now and send them all straight to your screen. It’s like watching the best of YouTube — only faster!

From rapping Community stars to playing out crazy scientific theories to the buzziest parodies, we have you covered right here on What’s Trending.

For daily YouTube Trends, watch us every weekday at noon PT on YouTube.com/WhatsTrending!

5. All of Alison Brie’s Raps

4. What if Everyone JUMPED at Once?

3. Honest Trailers – The Hunger Games

2. Complete MSL Curiosity Descent

1. LEAKED Official Apple iPhone 5 Promo Video – Keynote 2012

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