(Image source from: It was a starry 45th for Jennifer Lopez})

Jennifer Lopez's 45th birthday was not only a star-studded one, but quite eventful too.

Not only did a bevy of celeb pals drop in at the Greek restaurant and lounge Nammos Estiatorio in Southampton to wish the songstress on her birthday, but it also marked her reunion with alleged beau Maksim Chmerkovskiy.

The bash kicked off around 9 in the evening with Lopez's longtime manager Benny Medina, Khloé Kardashian and boyfriend French Montana, Scott Disick, Lopez's BFF Leah Remini, Fat Joe, Kelly Ripa and Mark Consuelos, Brian Atwood and Andy Cohen among the firsts to hit the party. Jennifer was the last to reach the venue. She came in with her sisters and looked absolutely divalicious in a white crop bustier underneath a white pantsuit.

"Dinner was served on the patio. The mood was light and sexy," a source revealed.

The event was planned by Sindy Mashiah, Lopez's longtime event planner, and Nammos' Karim Amatullah. "Everyone was having a ball. After the meal, Benny Medina got up and made a touching speech. He was saying it's not about the number of years you live, but the years you put into living. After that they brought out the cake—it was enormous! Jennifer blew out the candles and thanked everyone."

Post dinner, all guests hit the dance floor. But no one danced more than Jennifer. "She barely sat down all night! Of course, the DJ played some of her hits. She was really tearing it up, dancing until the very end," says a source.

Chmerkovskiy arrived at around 1 a.m. The DWTS pro and the birthday girl were very "affectionate," according to the source. "They seemed really happy to see each other," they said.

Later, J.Lo posted a selfie from her party last night, captioning, "Let the games begin! #itsmyparty #funtimes #birthdaygirl #aintnuthingbutanumber Too cute."

Khloé also shared, "She served it last night!!! Happy birthday @jlo."

AW: Suchorita Choudhury