The singer worked the Versace number at the Barclays Centre of Brooklyn for the bash, and surely turned the most heads of the night. After all, it's probably the biggest dress split we've ever seen, with half the dress' material 'missing' and her bodysuit on show.
The top half of the frock didn't get any more reserved with a metal cutout waist and halter neck.
She finished off with Giuseppe Zanotti heels and very large blingy earrings.
But the leg-baring number wasn't the only daring dress of the night for J-Lo. She also slipped into a shimmering little silver Versace mini, with a caged neckline to perform her new single 'Booty'.
Finishing the look with sexy knee-high boots and long black gloves, she oozed a very modern and very risqué Barbarella kind of vibe. There was even a bit of bottom-baring and some twerking that would have made Miley Cyrus blush.
You can check out the raunchy performance here:
Meanwhile, according to Just Jared, Jennifer recently opened up on being single again on the Meredith Vieira show. She said: "I'm just being on my own. I feel like I need that right now. I've been in relationships kind of back to back my whole life and I just needed time.
"I need time to just chill and just know me and enjoy my kids and actually make time for other friends instead of just the relationship thing."
LOVE J-LO? See more of her daring red carpet looks right here: