Musk, 53, spoke to a crowd of Trump supporters at Capital One Arena in Washington, D.C., after Trump was sworn in at the U.S. Capitol. While thanking the supporters, Musk put his right hand over his heart, then extended his arm out with his palm down. He then turned around and repeated the gesture.

X users believe Elon Musk did "the Hitler salute", also known as the "Nazi salute", in a huge inauguration blunder. The billionaire made the eerily similar gesture when he slapped the podium and raised his flat hand into the air.

The tech billionaire stiffly extended his arm to the crowd twice in a gesture similar to a Nazi salute during Trump's inauguration event

Elon Musk offered Donald Trump supporters what looked a lot like a Nazi salute on live TV at Trump's post-swearing-in inauguration rally.

Elon Musk has doubled down on his inauguration salute controversy with a bunch of Nazi jokes and has been slammed by the Anti-Defamation League.

Grimes, Elon Musk's ex, has responded to the backlash of his controversial hand gesture, which is going viral. On Monday, the Tesla CEO took the stage in Washington, DC's Capital One Arena, beginning his speech by saying, "Thank you for making it happen. Thank you," followed by slapping his right hand on his chest and extending it in salute.

Elon Musk is mulling legal action against “creepy” Minnesota Gov. Tim Walz for suggesting he performed the Nazi salute during his speech after Trump’s inauguration.

My Chemical Romance guitarist Frank Iero had stronger words for what experts described as a Hitler-esque gesture: "f--k this guy."