Yoko Ono was a successful artist before she met John Lennon, but she is often boiled down to just being The Beatle's wife, if not worse.

John Lennon did his fair share of straining in The Beatles, but he came close to losing his voice altogether when working on his solo ventures.

Had she never met John Lennon, Yoko Ono would still be an essential figure in conceptual and performance art history. She didn't need his spotlight, which if anything made her work harder to see.