While the gown seemed simple from the front, at second glance, an open back and thigh-high slit gave it a sexy edge. Hathaway, 30, told Kristin Chenoweth on ABC's red carpet that her mom called the dress "business in front, party in the back."
Viewers had their own opinions on the dress – which seemed to emphasize Hathaway's bust – which later inspired its own parody Twitter account.
But the dress may have served as a lucky charm for Hathaway, who took home the Oscar for Best Supporting Actress for her role in Les Misérables.
"It came true. Thank you so much to the Academy for this and for nominating me with Helen Hunt, Jacki Weaver, Amy Adams and Sally Field. I look up to you all so much and it's just been such an honor. Thank you," Hathaway said upon receiving her Oscar.
She continued, "There are so many people whose generosity and support is the reason I'm standing here right now. I must thank Hugh Jackman. Hugh, you're the best. The cast, the crew, especially Simon Hayes and the sound wizards. Congratulations on tonight, you guys."
Hathaway continued thanking the cast and the crew before giving a romantic shout out to her husband, Adam Shulman.
"By far and away, the greatest moment of my life is the one when you walked into it. I love you so much. And thank you for this. Here's hoping that someday in the not too distant future the misfortunes of Fantine will only be found in stories and never in real life. Thank you."