Imagine" is a song written and performed by John Lennon. It is a plea for world peace, asking the listener to imagine a world without war, violence, and hatred. The lyrics are simple yet powerful, and the melody is hauntingly beautiful. It has become an anthem for peace
From Wikipedia
"Imagine" is a song by the English musician John Lennon from his 1971 album of the same name. The lyrics encourage listeners to imagine a world of peace, beginning with living without religion and its concepts, without economic materialism, and without borders separating nations. Shortly before his death, Lennon said that much of the song's lyrics and content came from his wife, Yoko Ono, and in 2017, she received a co-writing credit.