Justin Bieber's surprise appearance at Tems' Coachella performance on April 14 has sparked both hope for his musical comeback and concern among his inner circle about his mental well-being. The singer, who has been performing only sporadically since canceling his Justice tour due to a viral infection that caused partial face paralysis in June 2022, appeared on stage in oversized clothing and a low-pulled baseball cap, looking like he had just stepped out of the audience.

While some fans interpreted Bieber's Coachella appearance as a sign that he might be gearing up for a return to music, sources close to the singer have expressed worry about his erratic behavior offstage. "He's still fragile and seemed checked-out all weekend," a source told In Touch, noting that the singer has a history of substance abuse and violent rages. "He finally got his health back, but now friends are worried that he's spiraling again."

Bieber, 30, has faced numerous challenges in recent years, including struggles with Lyme disease, depression, and anger management. He has also admitted to daily use of alcohol, marijuana, and "pretty heavy drugs" during his lowest points. "I hit a little bit of an emotional breakdown because I thought marriage was going to fix all my problems, and it didn't," he said of his first year with wife Hailey Bieber, 27.

According to the source, Hailey's unwavering support and Bieber's Christian faith have been crucial in helping him navigate his mental health struggles. "He wouldn't be here without her," the source said, adding that the model, whose father, Stephen Baldwin, is a recovering addict, has found it "extremely difficult" to navigate Justin's issues with sobriety.

Despite the couple's efforts to address Bieber's mental health through therapy and counseling with their pastor, the source noted that "there's only so much Hailey can do to keep Justin from going off the rails again." The source pointed to a recent request from Hailey's father for fans to say "a little prayer" for the couple in February and the fact that Justin hasn't been wearing his wedding ring lately as signs of strain in their relationship.

"Their relationship isn't in the best place right now, but she's always afraid of what would happen to him if she wasn't around. She can't leave him," the source said.

Despite the challenges, Hailey remains committed to supporting her husband and prioritizing his health. "Their marriage is Hailey's priority, as well as keeping him healthy," the source said. "Coachella was a huge accomplishment for Justin, and everyone is rooting for him. But he's still very fragile."

As Bieber continues to navigate his personal struggles, fans and industry insiders alike will be closely watching for signs of his potential return to music. While his Coachella appearance has raised hopes for a comeback, the singer's ongoing battle with mental health issues and the strain it has placed on his marriage serve as a reminder of the complex challenges he faces on his journey to recovery.