"Happy Xmas (War Is Over)" is a Christmas song released in 1971 as a single by the Plastic Ono Band with the Harlem Community Choir. It was the seventh single released by John Lennon outside his work with the Beatles. From Wikipedia
In a touching Oscars moment, Sean Ono Lennon dedicates his win to his mother, Yoko Ono, on Mother's Day in the U.K.
