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 bac…