What was he thinking? A man was arrested after smacking Justin Timberlake in the face at a charity golf tournament in Lake Tahoe, Nevada, on Saturday, July 23.

In a video posted by TMZ, the "Can't Stop the Feeling" singer can be seen walking through a crowd at the American Century Celebrity Golf Championship at Edgewood Tahoe Golf Course when a man reaches out and slaps him on the side of the face.

Timberlake, 35, stops and turns around to confront the man, asking, "Bro, why would you do that?"

After the singer walked away, security guards could be seen talking to the man who allegedly struck the singer.

TMZ reports that Timberlake, who was unharmed, didn't want to press charges, but when sheriff's deputies tried to escort the man off the course, things got difficult.

The man, who claimed he just wanted to "touch" the Grammy winner, appeared to be intoxicated and refused to leave, so the officers reportedly arrested him for disorderly conduct.

But Timberlake didn't let the incident affect his appearance at the tournament. He was spotted doing the Carlton dance with Fresh Prince of Bel-Air alum Alfonso Ribeiro and NBA star Steph Curry on Saturday. The trio also did Curry's trademark pregame Jones BBQ and Foot Massage dance.

Timberlake, who was introduced to the game of golf by his dad when he was a kid, said in a 2010 interview with Golf Digest that the sport his "getaway."

"I love being a songwriter, I love being a musician, I love being a producer, I love being an actor, I love working on a clothing line. I love all of those things because they're all creative," he said. "For me, golf is one of those things where you go out and forget about everything else."

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