Question: What song does Ozzy refer to in his song "Dreamer"  that was written by John Lennon, that encourages a world at peace?
Sentence (from "Dreamer (Ozzy Osbourne song)"): In the liner notes to Osbourne's "Prince of Darkness" box set, Ozzy refers to this song as his version of John Lennon's "Imagine".
Relevant evidence: Yes