Patrick Mahomes and Travis Kelce turned all the way up after winning the Super Bowl, hitting a stage with The Chainsmokers ... and partying with the group until the wee hours of the morning.
The Kansas City Chiefs stars joined the "Closer" crooners at the Hyatt Regency Scottsdale Resort and Spa on Sunday night just after beating the Eagles 38-35 in SB LVII in Arizona ... and by the looks of things -- they had an absolute blast.
In front of a crowd hundreds of Kansas City supporters, the guys danced their faces off .