Justin Timberlake halted his Forget Tomorrow World Tour performance in Austin, Texas, on Saturday when he saw a fan who appeared to need assistance.

Timberlake, 43, was singing his 2002 hit "Cry Me A River" when he stopped the show and called for the house lights at the University of Texas, Austin's Moody Center to be turned up.

"Can we get the house lights up just a bit?" Timberlake can be heard asking in a video shared by TikTok user @storyof4crazykidz.

"House lights up! House lights up, thank you! Sorry everybody one second, one second, we need some assistance right here about five rows back," the *NSYNC star said.

"Are we OK?," Timberlake asked, before seemingly receiving an affirmative answer. "No, no problem!" told the fan, who thanked him for checking.

"OK, we're OK," Timberlake said, as the crowd broke into cheers and applause. It's unclear what happened, but the Grammy winner joked about a possible concussion.

"We need a very serious Longhorn concussion protocol, please," he said before resuming the show.

Timberlake in March released his first new album in six years, "Everything I Thought It Was," and kicked off his tour at the Rogers Arena in Vancouver, Canada, on April 29.

 @storyof4crazykidz During night 2 of the ATX show @Justin Timberlake ♬ original sound - Apies  

--with reporting by TMX