Jimmy Fallon says "This must be viral..."

“@stevegarfield: Camp Winnipesaukee - YouTube. #FallonTonight https://t.co/lCOZTZioQq” whoa - @stevegarfield? This must be viral...

— jimmy fallon (@jimmyfallon) December 17, 2014

Camp Winnipesaukee w/ Jimmy Fallon & Justin Timberlake