Patrick And Brittany Mahomes Hit Up Disneyland With Kids After Super Bowl

Patrick Mahomes' Super Bowl celebration went from hanging with some Chainsmokers to livin' it up with a mouse ... 'cause the champ and his crew were treated like royalty at Disneyland on Monday -- and TMZ Sports has the video!!

The Kansas City Chiefs superstar and his wife, Brittany, brought Sterling and Bronze for the family-friendly fun ... and they were escorted through the theme park in a car as a ton of fans lined up to get a glimpse of the quarterback.

Of course, it's a quick turnaround -- the crew was raging into the early morning just hours ago ... but it's a tradition, and Patrick and Brittany will have to nurse their assumed hangovers with "It's a Small World" blaring in their ears.

"Welcome to the happiest place on earth, Bronze and Sterling! ❤️," Patrick said alongside a pic of his family on social media -- showing his newborn son's face for the very first time.