The 23-year-old American Hustle starlet opens up about the embarrassing moment in the latest issue of W magazine.
"I was the Oscars, waiting to hear if my name was called, and I kept thinking, Cakewalk, cakewalk, cakewalk. I thought, 'Why is cakewalk stuck in my head?'" she explains.
"And then, as I started to walk up the stairs and the fabric from my dress tucked under my feet, I realized my stylist had me, 'Kick, walk, kick, walk.' You are supposed to kick the dress out while you walk, and I totally forgot because I was thinking about cake. And that's why I fell!" J. Law concludes.
Her Dior Oscar dress did have a huge elaborate train that would be difficult for anyone to walk in, so we totally understand her trouble moving in it. And we're betting Jen got to enjoy lots of cake later on in the evening to celebrate her major win!