There is nothing more infuriating to an airline passenger than being stuck on the tarmac in travel limbo without leg room or entertainment.

A US Airways flight to New Orleans was delayed for maintenance after boarding, which basically means everyone on the flight was going nowhere fast. So when flight attendant Kari Mann realized that a barbershop quartet was onboard, she asked the group to provide some in-flight entertainment for the cranky passengers.

The group, named Port City Sound, broke out into an a capaella, feed-good tune, because it's really hard to be pissed off when a group of elderly gentlemen are singing "Under the Boardwalk."