Shou Zi Chew’s career trajectory is nothing short of remarkable. Today, he stands at the helm of TikTok as its CEO, guiding the app through its meteoric rise in global popularity. But before leading the viral video platform, Chew’s career began in a surprising place – as an intern at Facebook, the company founded by Mark Zuckerberg.

As a last resort, the platform is preparing for a total shutdown Sunday, the day a U.S. ban is set to go into effect if the Supreme Court doesn’t overrule it.

TikTok CEO Shou Zi Chew plans to attend President-elect Donald Trump's inauguration on Monday as the company confronts a new law with a looming deadline requiring it to sell to a non-Chinese firm or stop operating in the United States,