Article Photos: FAA investigates Harlem Shake video made during Frontier flight

File photo - A Frontier Airlines Airbus 319 heads down the tarmac at Denver International Airport to a nearby runway for takeoff in Denver. (AP Photo/David Zalubowski, FILE)

File photo - A Frontier Airlines Airbus 319 heads down the tarmac at Denver International Airport to a nearby runway for takeoff in Denver. (AP Photo/David Zalubowski, FILE)