Elon Musk, Jeff Bezos and Mark Zuckerberg will attend President-elect Donald Trump's inauguration on Monday, according to an official involved with the planning of the event. They will have a prominent spot at the ceremony, seated together on the platform with other notable guests including Trump's Cabinet nominees and elected officials.

Elon Musk is expected to speak at a Make America Great Again Victory Rally in Washington, D.C. He previously has delivered remarks at other President-elect Donald Trump events, including a campaign rally at Madison Square Garden.

Many budget hawks have tried and failed to streamline the government and reduce gigantic annual deficits. Musk's efficiency commission will only succeed if forces a reluctant Congress to finally act.