Fans have been clamoring for White, 88, to do SNL – an idea she called "ridiculous" just a few weeks ago – ever since her comic turn in a Snickers ad during the Super Bowl. One Facebook page devoted to the cause has attracted half a million fans.
When asked by PEOPLE, "Are you doing Saturday Night Live," she answered, "Yes," even if she remains perplexed by the groundswell of support.
"I don't know why or how," she says, "but it's been wonderful."
White didn't offer any details about the SNL gig, and it remains unclear when she will appear – or what it will entail.
Entertainment Weekly said she might appear on a special "Women of Comedy" episode with former SNL cast members Molly Shannon, Tina Fey and Amy Poehler – but executive producer Lorne Michaels reportedly denied that.
White's career resurgence hasn't come completely out of the blue. She did star with Sandra Bullock and Ryan Reynolds in the romantic comedy The Proposal, and was recognized with a lifetime achievement award at the Screen Actors Guild.