Justin Bieber got a little too hands-on with Ariana Grande during her concert this week ... and Big Sean was NOT happy about it.
During her "Honeymoon Tour" stop in Los Angeles this week at The Forum, Biebs joined Ari on stage to perform "As Long As You Love Me." At one point, Justin went over to Grande and embraced her from behind ... and his hands seemed to wander.
Ari immediately released herself from Justin, and went on with the song. Big Sean, who was sitting in the audience, witnessed the whole thing and sent out a few tweets directed at Biebs. - via
"beliebe that" pic.twitter.com/ysw15aZZI5— alana (@avxnsdazed) April 9, 2015
Check out what he had to say below along with footage of Beiber taking advantage of the moment...