J-Lo worked glow-in-the-dark David Koma and a Gaga-esque gold hair dress during the show. Photos:PA
But the most striking? J-Lo did her best Britney impression in a nude-hued bodysuit covered in strategically-placed crystals, which showed off every inch of those famous curves.
In the flesh: Jennifer Lopez performs during the 2011 American Music Awards. Photo:Getty
The newly-single singer launched into a typically high-energy routine, which involved quite literally flying around the stage with a little help from her backing dancers.
High flyer: J-Lo had the audience on their feet with a typically high-energy routine. Photo:PA
Wow. We wonder if Marc Anthony was watching?
It was a night worth celebrating for Jen as, show-stopping peformance aside, she also picked up the award for Favourite Latin Artist.
Bootylicious: J-Lo showed off her infamous curves in the figure-hugging body stocking. Photo:PA
Click on the gallery below to see all the red carpet arrivals from this year's AMAs: