Beyonce was forced to lay down the law at her show in Copenhagen after an overly-excited male fan slapped her bum on stage.
Just as she's leaning over to hold one fan's hand, he reaches behind her and slaps her bum - causing the singer to jump away.
Stopping the backing music, Bey can be heard warning him: "I will have you escorted out of here right now, alright?"
Ever the professional, Bey doesn't let it stop her having fun, hopping back on to the stage and finishing the song.
The 31-year-old's fans have jumped to her rescue, calling the over-zealous man a "dumb a**".
Another fumed: "How did he dare...? What a douche!!! If I were Beyoncé, I would probably have slapped the sh** outta him... Don't disrespect our Queen, please!!! And do not touch anybody without their consent next time!!! [sic]"
But not everyone thought the excitable man was in the wrong, with one commenter saying: "What else was a guy going to do at a Beyonce concert, listen to her music!?
"Slapping her a** was worth the admission price, regardless of how long he spent there."
It's unclear whether the perpetrator was eventually escorted off the premises, with the owner of the video saying he was "too far away" to see if security got involved.