7:43 with the latest on Justin Bieber. His mentor and fellow superstar usher stepping in. Reportedly racing to his side to give Bieber much-needed advice after his arrest in Florida. He's also in... See More
7:43 with the latest on Justin Bieber. His mentor and fellow superstar usher stepping in. Reportedly racing to his side to give Bieber much-needed advice after his arrest in Florida. He's also in trouble in L.A. With possible felony vandalism charges there. Reporter: Justin Bieber went from this scene to the blue waters and serenity of Panama. Hot on his heels, according to TMZ, his mentor, usher. Who reportedly flew in with the biebs' manager, scooter Braun. They're allegedly staging an intervention. I think if anyone can get through to him, it's usher. He's someone Justin respects. He's gt a few years on him. He knows what it's like. Reporter: Other celebs showing support. Singer Ariana grande spoke out. I want him to be okay. He's the most -- Visible. Visible and yet isolated H D human being I have ever met. Reporter: The 19-year-old seemed laid back. Posing with fans. Surrounded by body guards. Also by his side, chal tentel Jeffries. Bieber was busted for DUI, resisting arrest, and driving on an expired license. Law enforcement sources tell ABC news more incriminating than the booze was the mix of meds and pot allegedly in his system. He made statements that he had consumed alcohol and had been smoking marijuana and consumed some prescription medication. Reporter: That grinning mug shot, his first. But since he's being investigated for allegedly egging a neighbor's home, it may not be the last. The L.A. Sheriff may decide this week whether to charge him with felony vandalism. Justin has to understand he's in a dangerous place. He has to understand that there's real harm being done. And he has to understand that unless something changes, this is going to end ugly. Reporter: For "Good morning America," Matt Gutman, ABC news, Miami beach.
This transcript has been automatically generated and may not be 100% accurate.