The Top 5 Trending YouTube Videos of 2012

1. PSY – GANGNAM STYLE

2. Somebody That I Used to Know – Walk off the Earth (Gotye – Cover)

3. KONY 2012

4. “Call Me Maybe” by Carly Rae Jepsen – Feat. Justin Bieber, Selena, Ashley Tisdale and more

5. Barack Obama vs Mitt Romney. Epic Rap Battles Of History Season 2.