Jennifer Lopez
is 45 and fabulous!

The "I Luh Ya Papi" singer celebrated her birthday with a star-studded bash at Hampston's hotspot Nammos on Thursday night.

She took to Instagram to share a series of snapshots from her night out, posing for pics with Maksim Chmerkovskiy, French Montana, Khloe Kardashian, Scott Disick and more!

"Let the games begin! #itsmyparty #funtimes #birthdaygirl #aintnuthingbutanumber," she wrote, along with a photo of herself at the party.

The brunette beauty indulged in dessert with a "massive cake" -- and toofab has exclusive details about the decadent treat.

The confection, which was a molding of Lopez leaning atop a giant lion, cost $3000, according to Samicakes Boutique.

The sweet treat was lemon flavored and had a coconut custard filling and took two employees, two days to make.

The cake makers told toofab that J.Lo wanted a cake of herself in that outfit, complete with a lion. They went through six sketches before deciding on the picture above.

That cake is definitely one of a kind!

Click "Launch Gallery" above to see more photos from Jennifer's birthday bash.

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