Emma Stone shared her worst on-stage nightmare during an interview with Molly Shannon for a taping of Variety‘s “Actors on Actors.” Stone revealed how her “terrible” eyesight affected one of her performances in Broadway’s “Cabaret.”

“I was singing and I got really kind of overwhelmed and I blinked, and both of my contacts came out at once, which has never happened to me in my entire life,” Stone told Shannon.