His inauguration ceremony was attended by many notable figures, including former presidents and CEOs of major corporations like Elon Musk, Sundar Pichai, Jeff Bezos and Mark Zuckerberg, among others.

Google CEO Sundar Pichai and Tesla CEO Elon Musk were spotted having a brief conversation before Donald Trump's inauguration.

The swearing-in ceremony in Washington, moved indoors due to glacial temperatures, is being attended by former presidents, foreign dignitaries, tech and business executives, and an assortment of performers and celebrities.