It's official...Prince William may have made it to the altar first, but his younger brother still beat him in one area: partying hard!
In fact, the younger couple stayed out until sunrise at an afterparty after getting rowdy at the reception...
Harry and Chels continued the festivities at the Goring Hotel after the official reception wrapped at Buckingham Palace, according to Us Weekly.
The hotel bar reportedly even ran out of Kronenbourg beer before the fun-loving twosome called it a night around 5 a.m.
At the earlier party, Harry reportedly showed off his moves on the dance floor, including the snake, the windmill, the robot and breakdancing.
Although he clearly outdanced the groom, that doesn't mean the more buttoned-up Wills didn't cut loose, too. Both royal brothers got "very tipsy" during the bash, according to the Mirror.
The youngest brother made it his personal duty to ensure all the guests had an amazing time and plenty of alcohol.
"He wanted to make sure everyone had a brilliant time. He was acting like a rock star and making sure all the girls had a cocktail and all the lads were trying the Sambuca shots," a source tells British tab.
We'd expect nothing less from this fun-loving lad!