WATCH: Twitter Employees Do A Justin Bieber Flash Mob

Justin Bieber recently hit 25 million followers on Twitter. Coincidentally the Twitter staff decided to do a flash mob as part of a way to celebrate #hackweek. One of the conference attendees popped and locked to start the flash mob and one of the girls at the conference rapped the whole Ludacris verse. Check out the video below and then read the 100 most epic flash mobs on YouTube:

This article was written by Amit Chowdhry. You can follow me at @amitchowdhry or on Google+ at
Leave a Comment