Hundreds of People Join Psy's "Gangnam Style" Flash Mob in L.A!

Psy's "Gangnam Style" has taken over L.A!

On Saturday, a "Gangnam Style" flash mob event was held at the Forever 21 in Old Pasadena. This event was spread through twitter and hundreds of people came to join the event.

The group sang and danced the 'horse-riding' dance in unison. Even people that were just shopping danced along with the group.

Psy's "Gangnam Style" has reached over 40 million views on YouTube and has been featured on CNN, WSJ and other foreign TV shows.