The 'Drunk in Love' hitmaker stopped her show so that she could wish the lucky fan, Shehnaz Khan, who turned 22 that day, reported Ace Showbiz.
Khan filmed the moment and shared it on YouTube. In the nearly-two-minute clip, Beyone can be seen ordering her backing dancers to stop performing after spotting Khan standing in the front row while wearing a badge saying it's her birthday.
The star approaches the girl and asks her name before singing 'Happy Birthday'. After finishing the song, Beyonce returns to the stage and continues the show.
"I can't believe she stopped the show for me. I was leaning over the barrier holding her hand and not realising the camera was recording, everyone around me was going crazy!" Khan said.