The comedian and actress, 58, who's hosting the show alongside Amy Schumer and Regina Hall, tells PEOPLE in this week's issue that doing the White House Correspondents' Association dinner in 2009 more than prepared her for Hollywood's biggest night.
"I was just thrown into the fire," Sykes recalls. "I had no idea the magnitude of people who would be in that room."
One particular exchange from that night will stay will her forever.
"At the Correspondents' dinner, I shushed the First Lady," Sykes tells PEOPLE. "Michelle Obama was sitting right next to me, and I'm going over my material, my jokes, and I'm focused on prep, and she's trying to make conversation. And I just gave her a look like, 'Woman, I'm working over here! What are you doing? Pipe down.' "
"I think I'll be okay in this role," she says with a laugh.
ABC's late-night talk show host Jimmy Kimmel was the last Oscars host when he headlined the ceremony in both 2018 and 2017. Kevin Hart had been named as host of the 2019 show but stepped down amid controversy over his resurfaced homophobic tweets.
