Sir Paul McCartney has turned 80 this weekend and has seen the world's response to mental health change drastically.
The Hey Jude hitmaker used his songwriting and performing as a form of therapy for his own demons - but found that sometimes that wasn't always enough.
Paul told GQ magazine last year that he used alcohol as a way to deal with the intense pressures that came with being a member of one of the world's most successful bands.
