The Washington Capitals and Pittsburgh Penguins are two of the NHL's biggest rivals, but their fans came together to help out when national anthem singer Caleb Green's microphone cut out before their Wednesday Night Rivalry game at Verizon Center.

This isn't the first time such an event took place this season. Some might remember when Vancouver fans helped out the
American-anthem singer
Jim Byrnes before the Vancouver Canucks game against the St. Louis Blues on Oct. 18
It's safe to assume Capitals fans and Penguins rooters who made the trip to the nation's capital went back to ribbing each other shortly after the anthem was finished.