One fan learned that lesson the hard way Saturday night at Atlanta's Gwinnet Center, when Sasha Fierce, Beyonce's on-stage alter ego, gave him a lecture about living in the moment.
During a performance of her 2006 hit "Irreplaceable," Beyonce walked back-and-forth onstage calling for audience members to sing along with her. She stopped right in front of one fan who timidly belted out the tune as he tried to record the moment on his camera.
You can't even sing because you're too busy taping! I'm right in your face, baby," she told the flustered fan. "You gotta seize this moment. Put that damn camera down!"