Jennnifer, 44, took to the stage at KTUphoria on Sunday night (29 June) in East Rutherford, New Jersey, where she was headlining alongside Ariana Grande.
The mum-of-two looked pretty amazing as she showed off her enviable figure in the plunging sparkly suit.
Showing off her pins, she teamed her outfit with tan coloured open-toe boots, and kept her wavy hair loose, as she showcased her powerhouse vocals.
Jennnifer had also flaunted her enviable figure the night before (28 June) in a colourful bodysuit at the iHeartRadio Ultimate Pool Party in Miami Beach, Florida.
Unleashing her fierce dance moves, the 'Jenny From The Block' hitmaker strutted her stuff on stage with her backing dancers.
She gave fans a high-energy performance, whipping her ponytail back and forth. One word - fierce!
Newly-single Jennifer, who split from dancer Casper Smart earlier this month, has been dazzling fans with her outfit choices as of late, including her daring green leotard at the World Cup opening ceremony in Brazil.
Although J.Lo went solo this week, last weekend she performed in Connecticut and rumoured beau Maksim Chmerkovskiy, a pro dancer on Dancing With The Stars, joined her at an after party at a club.
While neither have confirmed or denied reports, one person who Jennifer has been gushing over is British model David Gandy! David stars in Jennifer's new 'First Love' music video. "I mean, this guy, he's almost perfect," said Jennifer. "He's almost perfect."
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Watch Jennifer's video for 'First Love' below: