The fruit bounced off Grande's chest, leading her to declare, "That's 'cause one of y'all threw a lemon at me, s**t."
Several fans caught the moment on camera, and Billie Eilish’s brother and collaborator, Finneas, took to Twitter to throw shade at the culprit. "If you throw a lemon at Ariana Grande, you’re a piece of s**t," he tweeted.
ARIANA SWEETIE IM SO SORRY ABOUT THAT LEMON BUT... I CANT BELIEVE CHRIS AND I SAW THIS RIGHT IN FRONT OF US JSKSJW pic.twitter.com/SoJvdEwQjn
Other fans of the 25-year-old singer also took to social media to express their annoyance over the incident, with some even speculating that this was in response to Beyonce, whose last studio album was titled Lemonade, headlining Coachella last year.
"Someone threw a lemon at our baby!!! Who the f**k throws lemons at a concert??" one tweet reads in part.
"Throwing a lemon at Ariana grande? How dare you," another fan wrote.