Followers: 660,630
Tweets: 12,004

If we do this list next year, we'll probably have to exclude Rob Delaney 'cause dude is about to blow up. Having already taken home the "Funniest Person on Twitter" award at the 2012 Comedy Central Awards, the Massachusetts native recently rocked a sold-out show in NYC last week as part of his latest tour. Trust us: Follow him now before one of your boys hits you on gChat in month or two and says you should.