JLaw sported a rather unremarkable red strapless Dior to the Academy Awards (where she lost out on the Best Supporting Actress Oscar to Lupita Nyong'o) but it was a totally different story at the Vanity Fair Oscar party.
The "American Hustle" actress changed into a sexy Tom Ford mini dress which took all the attention away from her helmet hair.
The frock featured glass shard embellishments, sheer side panels and a gorgeous sheer back that gave the whole outfit a youthful zest.
Sporting heavy kohl liner and a sleek black sandal, the Academy Award-winner looked ready to party the night away, even if she didn't walk away with a second gold statuette (although that didn't stop her from trying to "steal" one from Lupita).
Jen's 2014 Oscar dress:
She had a fun time at the Oscars: