Some of the world's most prominent business leaders went to Washington for President Donald Trump's swearing-in ceremony.

Among the guests at Donald Trump's second inauguration in Washington, D.C. today were three billionaire tech CEOs: Amazon's Jeff Bezos, Tesla's Elon Musk, and Meta's Mark Zuckerberg. They were also joined by Google CEO Sundar Pichai and Apple CEO Tim Cook.

See images of the celebrities and prominent business leaders attending the inauguraton of President Donald Trump in Washington, D.C., on Monday.

Ivanka Trump looked incredible in a custom-made gown as she was pictured rubbing shoulders with the elite at her father's pre-inauguration candle-lit dinner

Eight years ago, it was mostly family and elected officials behind Trump as he took the oath of office. This time fellow billionaires will surround him.

Ivanka Trump and Elon Musk were among those attending a star-studded candlelight pre-inauguration dinner for Donald Trump.

Ivanka Trump dazzled in an Oscar de la Renta dress at the gala dinner held in Washington before Donald Trump's inauguration.

Ivanka Trump dressed to impress for her father Donald Trump's pre-inauguration candle-lit dinner and she seemed to have caught the eye of Elon Musk as they were pictured chatting