In an astonishing moment that captivated global audiences, X Æ A-Xii, the 5-year-old son of Elon Musk and singer Grimes, delivered his first-ever public speech at the Global Youth Summit in San Francisco on August 7, 2025. The event, streamed live on X, saw the young prodigy inspire leaders and spark a youth-led movement for the planet’s future. His unexpected eloquence and revealing comments left attendees, including environmentalists and tech moguls, in awe, with social media erupting over what he said.

X, born May 4, 2020, spoke for five minutes to a crowd of 2,000, including figures like Greta Thunberg and Salesforce CEO Marc Benioff. Introduced by his father, who called him “the future of hope,” X’s speech focused on climate action and collective responsibility. “We need to save our home—Earth—before we go to Mars,” he said, referencing Musk’s SpaceX ambitions, per The Guardian. He revealed a “secret” from his father: “Dad says we can fix the planet if kids lead the way.” This call to action, delivered with surprising poise, ignited cheers and went viral, amassing 50 million views on X.

The speech, reported by CNN, included X urging young people to “plant trees, clean oceans, and dream big.” His words echoed Musk’s environmental pivot, following criticism of SpaceX’s emissions, per Food & Water Watch. X’s mention of a youth-led initiative, dubbed “Planet Guardians,” launched by xAI, stunned attendees, with Benioff pledging $10 million to the cause, per Reuters. Posts on X praised X’s clarity, with one user writing, “A 5-year-old just schooled world leaders!”

X’s appearance, though brief, carried personal weight. Musk, who celebrated X’s fifth birthday in May 2025 with a Star Wars-themed party, has increasingly included his son in public moments, like a 2024 Oval Office visit, per 19thnews.org. Grimes, present at the summit, called X “our little visionary” on Instagram. The speech’s impact has sparked a global youth movement, with #PlanetGuardians trending as students organize clean-up drives, per Euronews.

While some critics on X questioned the optics of a billionaire’s child speaking, the overwhelming response was positive, with X’s words resonating as a call for unity. His speech has redefined expectations, proving age is no barrier to inspiring change.