Ono, 80, believes the idea that she was behind the Fab Four's rift led to the public's lack of appreciation of her own music for "40 years or something." But she's turned the "big energy of hatred ...

Forty years ago this week, John Lennon marked his penultimate birthday at age 39. It was October 9, 1979, and Lennon and wife Yoko Ono celebrated the occasion at New York City’s Tavern on the Green.