‘She knew where she wanted to go – and just kept going’: the real Janis Joplin by those closest to her

‘Music exploded within her’ … Janis Joplin on stage in 1968. Photograph: Crawley/Kobal/Shutterstock – Janis Joplin – She was the epitome of Summer of Love chic – and became overshadowed by tragedy. But as her raw power is celebrated on stage in London, …