By US rapper and apparent presidential candidate Kanye West has opened up in the past about his struggles with bipolar disorder.
But his recent erratic behaviour has again called into question his health and treatment.
He launched his election campaign on Sunday (July 19) with a speec that saw him rant incoherently, reveal he had wanted to abort his daughter, and break down in tears.
Other celebrities who have spoken publicly about their diagnoses include actor Stephen Fry and the late fashion designer Alexander McQueen.
