19. Brian Wilson

Handle: @BrianWilson38
Followers: 444,277
He gets docked a few points for using his Twitter to promote Taco Bell (although if they cut us a check we'd be tweeting about getting chalupa sauce in our beard, too), but he also isn't in love with his own voice, so his tweets—about beards, dubstep, beards, and questionable fashion—won't fill up your timeline.