It's the Trending Now Top 5 Countdown for December 10, 2012 - where we gather the hottest and most outrageous must-see YouTube videos hitting the web today and send them all straight to your screen. It’s like watching the best of YouTube — only faster!
From One Direction's smoochfest on "David Letterman" to the Simon's Cat holiday icecapade, we have you covered right here on What’s Trending.
#5: David Letterman - One Direction Gets Kissed
#4: Saudi Kid Imitates a Siren
#3: Gold Bullion Vault - Periodic Table of Videos
#2: Simon's Cat in 'Icecapade'
#1: WCU vs App State - Worst Free Throw Ever