Sean Lennon Wishes Yoko Ono ‘Happy Mother’s Day’ During Oscars Speech

War Is Over! Inspired by the Music of John & Yoko won the Oscar for Best Animated Short and Sean Lennon took the opportunity to celebrate his mom, Yoko Ono. Filmmakers Dave Mullins and Brad Booker took the stage alongside Lennon, who capped off the acceptance speeches by calling out, “Happy Mother’s Day, Yoko!”

(For those confused by the shout out, today marks Mother’s Day in the U.K. while the U.S. traditionally celebrates in May).

“John Lennon and Yoko Ono wrote a song, anti-war message we tried to honor with this film,” Mullins noted in his speech. He added of Sean Lennon, “We want to thank our executive producer and creative partner, who was amazing to work with.”

War Is Over! Inspired by the Music of John & Yoko is an 11-minute animated film set in an alternate World War I reality. It follows two soldiers from opposite sides of the conflict who play a game of chess. It was inspired by Lennon and Ono’s song “Happy Xmas (War Is Over).”