Elon Musk has taken to social media to mock Billie Eilish’s intelligence after the Grammy and Oscar winner said the world’s richest man should give away most of his money.

Last month, while accepting the music award at this year’s WSJ Magazine Innovator Awards, Eilish, 23, urged the super-rich to use their money to help solve many of the world’s problems.

“We’re in a time right now where the world is really, really bad and really dark and people need empathy and help more than, kind of, ever, especially in our country,” Eilish said to an audience that included Facebook founder Mark Zuckerberg . “I’d say if you have money, it would be great to use it for good things, maybe give it to some people that need it.”

Eilish, who announced she was donating $11.5 million from her Hit Me Hard an

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