Posting a photo on Instagram from a night in 2016, alongside manager Scooter Braun and Kanye West, Justin wrote, "Just wanted to keep you guys updated a little bit.
"Hopefully what I'm going through will resonate with you guys. Been struggling a lot. Just feeling super disconnected and weird.. I always bounce back so I'm not worried just wanted to reach out and ask for your guys to pray for me. God is faithful and ur prayers really work thanks .. the most human season I've ever been in facing my stuff head on.."
His post prompted a lot of people to send their love and support to Bieber, including Diplo, Luis Fonsi and Madison Beer.
"He really wants to get better," an insider told E!. "He has been seeking all the help he can get."
The source expressed how Bieber has found a strong support network composed of "the people that love him most," including wife Hailey Baldwin, of course, and his pastor.
The source also said that Justin "is in outpatient therapy and getting help every day."
"She's very involved in his plan of action and making decisions," the insider explained. "She's the rock right now and he goes to her for everything. She listens and is always there for him. Hailey has known about his struggles for a long time. He has dealt with depression before and this is not new to her."
Hailey also "knows it's not about her and their marriage is solid," the source added.
If you, or someone you know needs help, speak confidentially to a trained counsellor 24 hours a day:
Kids Helpline on 1800 55 1800.
Lifeline on 13 11 14.