Robert Wilson, a leader in avant-garde theater who collaborated with Philip Glass, David Byrne and Lady Gaga over his six-decade career, has died. He was 83.

Robert Wilson, a visionary director and collaborator who worked with a diverse lineup of artists that included Philip Glass and Lady Gaga, died on Thursday. He was 83.

Over a six-decade career, he created elegantly stylised performances and images with collaborators including Marina Abramović, Philip Glass, Laurie Anderson and Lady Gaga