You wouldn't blame Big Sean for being annoyed with Justin Bieber. As you can see in the Vine captured above, Biebs joined Sean's girlfriend Ariana Grande onstage in Los Angeles on Wednesday night (April 8) and flirtatiously wrapped his arms around the "Break Free" singer, who then nervously wriggled away.

Reportedly, in a tweet that was posted and then deleted from Big Sean's Twitter account, the "Best Mistake" rapper threatened Justin. "This kid is about to learn not to touch my girl like that. Beliebe that," the message said, according to TMZ.

But the site has since backtracked, and it appears the whole thing was one big hoax. Big Sean, Ariana Grande and Justin Bieber are all on solid terms.

For his part, Justin seemed oblivious to any tension. He tweeted out a positive message after the show: "Love the stage. Thanks for having me @ArianaGrande and thanks LA. Gotta tour again soon :)"

Ariana tweeted that it was "such a special night."

Celebrities Kissing