A 2,500-square-foot mural of John Lennon was unveiled in Central Park on Wednesday.

“Imagine Again” — at the Naumburg Bandshell — is the work of Texas-based artist Eric Waugh in celebration of the International Day of Peace.

“I wanted to bring a little piece of love and peace into the world,” Waugh told The Post Wednesday.

The 50 x 50 mural, showing Lennon in a psychedelic swirl of pinks, blues and yellows, took 88 hours to complete.