Tech mogul and CEO of Tesla and SpaceX Elon Musk was seen cheering on Donald Trump as the latter was sworn in as president on Monday.

X owner Elon Musk stirred controversy Monday with a hand gesture made at a Trump inauguration event that quickly drew comparisons to a fascist salute.

President Donald Trump's "first buddy," Elon Musk, was seemingly everywhere in D.C. on Inauguration Day. Where (and with whom) was the billionaire?

Stewart took on Trump’s news-filled Inauguration Day (full video, below) during Monday’s episode of Comedy Central’s The Daily Show. During Stewart’s 15-minute opener, he mocked the tech billionaires in attendance, President Joe Biden’s last-minute pardons of his family, Elon Musk’s controversial crowd salute and, of course, Trump’s speech.

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 now attempted to drag Taylor Swift into his "Nazi salute" scandal following his controversial speech at Donald Trump's inauguration. The Tesla CEO has been hit with fierce backlash online this week after during his speech he raised his arm in a manner that drew comparisons to the infamous gesture associated with Nazi Germany.

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

Getting humans to Mars has long been an obsession for SpaceX CEO Elon Musk. On Monday, that project got a full endorsement from the newly sworn-in president.

National Security Counselors, a public interest law firm, plans to file the lawsuit shortly after Trump's noon inauguration.

Among the tech CEOs in attendance at Donald Trump's inauguration ceremony inside the Capitol rotunda on Monday, Jan. 20, were Elon Musk, Mark Zuckerberg, Jeff Bezos and Tim Cook

Trump's former chief strategist told ABC Sunday he believes the billionaires' inauguration attendance is an "official surrender" to the next administration.