Britney Spears most recently dropped an "F-Bomb" on a rude fan who reportedly called the singer a "fat bitch" during her performance.
It is believed that the fan in the audience may have got irritated due to the delay in music concert, however, nothing is officially out yet, TMZ.com reported.
According to the reports, a guy standing next to the mic says "fat bitch", and then Spears can be heard clearing saying "f***ing asshole" to the fan.
Critics of Spears' show said that the singer walked through her performance like a robot, but video clearly showed singer's antennas were up.