Billboard’s Fan Army Face-Off 2018.

Billboard isn’t holding the Fan Army Face-Off 2018 to find out who has the strongest fan army of the year. In Round 1 Katy Perry’s KatyCats are up against Harry Styles’ Stylers.

Voting for each round lasts one week: Round 1 is on July 18 at noon. Round 2: July 25 at 12:01 P.M. Round 3: Aug. 1 at 12:01 P.M. Round 4: Aug. 8 at 12:01 P.M. Round 5: Aug. 15 at 12:01 PM. Championship: Aug. 22 at 12:01 PM.