After Justin Bieber’s surprise performance at the Ariana Grande’s show in Los Angeles Wednesday night, a tweet threatening the star appeared on Ariana’s boyfriend Big Sean’s Twitter page.

“This kid is about to learn not to touch my girl like that,” the fake tweet read. “Beliebe that.”

However, the “I Don’t F–k with You” rapper’s rep confirmed to TMZ the post was faked and that Sean is good friends with Justin.

No stranger to Twitter himself, before the “You’ll Never Know” singer joined Grande onstage he baited his fans tweeting “What should I do tonight? Hmmmm.”

Justin’s appearance sent Ariana’s fans through the roof. The pair sang her hit “Love Me Harder” first, followed by two of his tracks, “Where Are U Now” and “As Long as You Love Me” when the pair cuddled up briefly for the duet’s climax.

Bieber tweeted his gratitude following the show. “Love the stage. Thanks for having me @ArianaGrande and thanks LA,” he wrote. “Gotta tour again soon.”

Two weeks ago, when the ‘Baby’ pop star stunned Ariana’s fans for the first time in Miami, the performance didn’t go too well. The Biebs admitted forgetting the lyrics to, perhaps Ariana’s biggest hit, “Love Me Harder.”

At the end of the cut he said “So I feel bad, I forgot the words, Ariana, I’ve been trying to memorize them backstage for like an hour.” But despite the slip-up, the “Nobody Heard” singer stood smiling and pointing to her sold-out audience of screaming fans, much to their delight.

The Los Angeles do-over went off without a snag.