i'm zack!

It's been a pretty horrible week in music when it comes to songs going viral. Rebecca Black started it off with possibly the worst written song of all time with "Friday." Now, a 13 year old named Zack has decided to throw us a curve ball with his Bar Mitzvah music video, "I'm Zack." Click through to see the two videos and tell us what song you think is the " Worst Song Ever."