AceShowbiz - Donald Trump's inauguration ceremony on Monday, January 20 was filled with a lot of viral moments that overshadowed the main event. One involved Facebook CEO Mark Zuckerberg seemingly looking down at Lauren Sanchez's assets. Zuckerberg was seated next to Sanchez and her fiancé, Amazon founder Jeff Bezos, in the Capitol Rotunda in Washington, DC.

Sanchez wore a revealing white Alexander McQueen pantsuit with a lace bustier peeking out from underneath. Zuckerberg's wife, Priscilla Chan, was sitting on the other side of him, dressed more conservatively in a cardigan.

Footage of Zuckerberg's seemingly wandering eye quickly went viral on social media, with many roasting the social media mogul. Some joked that Zuckerberg "is human after all," while others accused him of being "a dog."

Despite the controversy, Sanchez and Zuckerberg appeared in good spirits throughout the event. Also spotted with them among the super-rich at the event were Google CEO Sundar Pichai and Tesla mogul Elon Musk.

Carrie Underwood performed a beautiful a cappella rendition of "America the Beautiful" despite technical glitch while Christopher Macchio delivered the National Anthem. In his speech, Trump promised to bring America to its "golden age."