Drug addiction and fame-induced stress sent Beach Boys mastermind Brian Wilson into a spiral of depression. After the death of his father in 1973, Wilson shut himself in his bedroom for two years, bingeing on drugs, food and alcohol. The Beach Boys cut ties with Wilson, who was eventually able to put his life back together with the help of family and doctors. The singer was later diagnosed with schizoaffective disorder, a type of bipolar disorder. —XFINITY Entertainment Staff (Photo by Ian Gavan/Getty Images)
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