Prince Harry was brutally mocked by Sean Ono Lennon who shared his thoughts about the Royal’s 2023 memoir, Spare.

Sean Ono Lennon shared his thoughts on Prince Harry’s Spare (Image: Getty)Sean Ono Lennon took to social media to share his “long-awaited” remarks about Prince Harry’s bombshell 2023 memoir, Spare.

The book, which quickly became a bestseller, shared a raw insight into his upbringing in the Royal Family and the hardships he endured growing up in the spotlight.

Although the record-breaking book received mixed reviews, Sean revealed he was unimpressed as she shared his thoughts on X, the platform formerly known as Twitter.

The son of John Lennon and Yoko Ono told his 365,500 followers: “My long-awaited review of Prince Harry’s autobiography is two words. ‘Spare Me.’”

However, after an onslaught of backlash the 48-year-old quickly doubled down on his comments with different posts.

Sean wrote: “I do empathize with him generally. But the way he whines and wangs on about things is really too much.

“I’m just having a little fun. I think he’s earned some mockery. (I’m sure I have as well).”

The songwriter also noted that while he is “aware” of what he and Prince Harry have in common, he considers the Royal an “idiot” and a “buffoon.”

“I do [empathize with him]. … [That’s] why I’m very disappointed with his outlook. I was hoping he’d be smarter.”

Sean is the son of John Lennon and Yoko Ono (Image: Getty)

He then responded to a Sussex fan who claimed that he “based his whole life on his father’s success,” and another who suggested he was jealous of Harry’s success.

Sean hit back: “I mean, I don’t care but I did win an Oscar this year so…I think I’m doing okay.

In March, he won the highly coveted trophy for Best Animated Short Film, which was awarded for “War Is Over! Inspired by the Music of John & Yoko.”

The 48-year-old co-wrote the film alongside director Dave Mullins.