"This is Armani Privé. I'm actually here for Red Carpet Green Dress, which is... Oh my god! I'm so sorry!" the 26-year-old actress exclaimed as she stepped back onto Huppert's floor-length Armani Privé gown during an interview with ET's Kevin Frazier.
"I can't believe I stepped on her dress! I love her!" Roberts shared. "It's OK, it's fine, just shake it off."
"Isn't there like a moon eclipse tonight? Weird things are happening because, literally I never trip, and I've almost literally face-planted three times walking down this carpet, so I don't know what's in the air," she explained. "I almost ripped her dress!"
Coincidentally, Roberts and Huppert both wore Armani Privé for the evening, with the Scream Queens star donning a 2005 vintage black-and-white gown.
"Anyways, Suzy Amis Cameron started [Red Carpet Green Dress] to bring awareness to living a sustainable life," Roberts said. "So this dress is sustainable, because it's vintage."
"And I'm kind of in shock that I'm here," she added. "It's surreal. It's so fun, and it's so nice to, you know, I go to events a lot, but it's nice to come to something like this, and have a reason that you feel good about, and something behind it."