During a recent appearance on U.K.’s “The Jonathan Ross Show,” Justin Timberlake loosened up his suit and tie and joined the host in several shots of tequila before playing a round of miniature golf.

Timberlake was there, ostensibly, to promote his new album, “The 20/20 Experience,” but Ross quickly steered the conversation to the singer’s tequila brand, 901 Tequila.

As Ross slammed down two shot glasses while Timberlake was explaining his brand’s origin story, the singer went wide-eyed: “Excuse me? Is that, like, a challenge?” The pair threw back two quick shots, with Ross struggling to keep the liquor down.

After three rounds of mini golf, with holes based on Timberlake’s hit singles, Ross poured the two a fifth and final shot of the tequila. “Are you serious?” a noticeably tipsy Timberlake countered.

Quite serious, it would seem: Watch the hilarious video (which aired in the U.K. in February 2013, but we just came across and had to share) above.

Posted by:Billy Nilles