Ariana Grande and Justin Bieber no longer share a manager.
A source tells ET that Grande recently fired Scooter Braun as her co-manager, though the decision had "nothing to do" with Bieber. "Ariana always has and continues to support Justin," our source says. "She did not think the relationship was working for her professionally anymore. It was time to move on."
The source adds: "She thinks this is the best professional decision for her moving forward."
Grande continues to work with her team at Untitled Entertainment, which includes manager Stephanie Simon -- a relationship that pre-dated her involvement with Braun.
ET has reached out to both Grande's rep and Braun for comment.
The news comes as Grande is set to hit the GRAMMYs stage as a presenter on Monday. Chances are high that Braun will be in the audience, as his first major client, Bieber, is nominated and performing at the show.
But the real question is whether Grande will be joined by her grandmother, whom she affectionately calls Nonna, during the festivities. See how Nonna Grande totally stole the show at the American Music Awards back in November.