Britney Spears stunned as crazed man rushes stage in Las Vegas: 'Does he have a gun?'

Britney Spears' Las Vegas concert Wednesday night took an unsettling turn when a crazed man jumped on stage, where he was quickly apprehended by security.

Spears, who was in the middle of performing her hit "(You Drive Me) Crazy" when the incident unfolded, appeared distressed as she realized something unplanned was happening.

Video footage from concertgoers shows Spears asking the crowd, "Are you guys having fun?" before a security team member got her attention. "Is everything okay? What's going on?" she asked, her microphone still on.

Parts of the conversation are unintelligible, but a fan who recorded it says she at one point asked, "Does he have a gun?"

Spears and her dancers quickly retreated off-stage as guards apprehended and handcuffed the individual, who has not yet been identified. Fans booed the perpetrator, with some shouting, "A--hole."

Spokespeople for Spears and the Las Vegas Police Department did not provide comment to Billboard.