It's officially March 1. And you know what that means: March Madness time.

Just as we did last year, we've rounded up the most fiercely dedicated fans in pop music — from Lady Gaga's Little Monsters to Adam Lambert's Glamberts to Beyonce's BeyHive — and paired 'em off for what will likely be yet another grueling fight to the finish in a tournament between the ever-loyal groups for the highly coveted crown as this year's Best Fanbase.

The loyal Little Monsters took the title last year, but who will win this year?

The match-ups for 2016 were just announced, so get to voting below. The first round ends on March 9 at 11:59 PM EST.