The accidental flash turned out to be a blink-and-you'll-miss-it moment, but enough to go viral, with fans commenting that mother-of-two's stunning electric blue gown may not have been tight enough around the cleavage area.
But in typical fashion, Tina Fey makes light of the 'nip slip' on a new promo to plug her hosting stint on Saturday Night Live this weekend.
Oh, and the really tragic part? It feels great to be back! She is the first lady in Hollywood who started her career as a writer and later worked in the acting industry.