The Oscar winner also debuted lighter locks as she promoted her sci-fi film with Chris Pratt, 'Passengers.'
It was an almost wardrobe malfunction!
Jennifer Lawrence stepped out on Tuesday night for An Evening With Sony Pictures Entertainment at CinemaCon 2016 in Las Vegas, Nevada, donning a chic Altuzarra handkerchief skirt and black tank top that turned completely sheer under the flashing lights of the photogs.
The 25-year-old Oscar winner, who seems to have returned to a lighter shade of blonde, went braless, but didn't expose too much -- she was actually wearing nipple covers!
WATCH: Chris Pratt Gushes Over Anna Faris at MTV Movie Awards: 'Our Son Was Destined to Be Tough'
Lest a little red carpet peekaboo distract you, remember that CinemaCon marks the official kickoff of what will be the most adorable press tour ever: Lawrence and co-star Chris Pratt promoting their epic sci-fi love story, Passengers.
We don't even know what they're saying here, but we know it was hilarious and amazing.
And Passengers doesn't hit theaters until Dec. 21, so we could have an entire year of this!
We are truly #blessed.
Lawrence recently revealed the TMI reason she chose her Golden Globes dress. Find out what the oh-so-candid star had to say in the video below.