We often imagine celebrities as leading perfect lives - when you're rich and famous, what problems could you possibly have?
But the truth is, stars can suffer as much as anyone. Mental illness, as they say, does not discriminate.
Many celebs have been open about their struggles with mental health, helping to end the stigma that once surrounded conditions such as depression, anxiety, obsessive-compulsive disorder and bipolar disorder.
Demi Lovato has been open about her struggle with bipolar disorder, cutting and bulimia. "I never found out until I went into treatment that I was bipolar," she told People when she was 18.
Leonardo DiCaprio suffers from OCD, which he drew upon while playing Howard Hughes in The Aviator.
Lena Dunham suffers from obsessive-compulsive disorder, depression and anxiety, and even incorporated OCD into her character on Girls. She has taken medication for her conditions and told fans on Instagram that exercise helps immensely.
Funnyman Robin Williams suffered from depression, paranoia and anxiety and tragically took his own life in 2014. However, his widow Susan said her husband's death was a result of Lewy Body Dementia, a form of neurodegenerative dementia that causes mood instability, hallucinations and impaired motor skills.
Justin Bieber admitted to taking Adderall for ADHD, but recently quit because it gave him anxiety. Early in 2016, he canceled meet-and-greets with fans, saying they left him feeling "drained and unhappy" and "mentally and emotionally exhausted to the point of depression."
The movie star admitted that she used to cut herself as a teen. “I went through a period that when I felt trapped I would cut myself. I have a lot of scars,” she told OK! magazine.