who wrote the song so this is christmas

It was written by John Lennon in 1971, the year after he had released his first solo album "John Lennon/Plastic Ono Band." The song was recorded with his wife Yoko Ono and released as a single in December 1971. The song has since become a holiday classic and is still performed by many artists each year. The song's message of peace and love during the Christmas season is a powerful and timeless one.