Friendly Exes! Jennifer Lopez and Diddy Look Ecstatic to Be Together Again at the AMAs After-Party

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Jennifer Lopez and Sean 'Diddy' Combs are giving us some serious early 2000s flashbacks.

The exes, who dated 16 years ago, were snapped happily partying together on Sunday night at Lopez's private American Music Awards afterparty at Hyde Sunset Kitchen + Cocktails in West Hollywood, California. Clearly, the two are still on friendly terms, with both sporting huge smiles on their faces as Diddy had the 46-year-old singer giggling.

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WATCH: EXCLUSIVE -- Let's Reminisce About J. Lo and Diddy's Romance With 'Gold Name Plates'

Diddy also gave his ex a shoutout during the awards show -- which she hosted, and opened with a killer performance of a montage of this year's biggest hits -- asking the audience on stage, "Can we give it up for Jennifer Lopez one time?"

Lopez and Diddy dated from 1991 to 2001; she was with the 46-year-old rapper and businessman when he was arrested on weapons violations charges outside the Times Square Club in New York in 1999. Combs was later found not guilty of all charges in the incident. In 2003, Lopez claimed he cheated on her.

"It was the first time I was with someone who wasn't faithful," J. Lo told Vibe magazine. "I was in this relationship with Puff where I was totally crying, crazy and going nuts, it really took my whole life in a tailspin."

Still, she has a sense of humor about her romantic past.

When the singer was jokingly asked which one of her famous exes she would save if they were drowning in the ocean -- Diddy or Ben Affleck -- during Power 106's Big Boy's Neighborhood webcast last March, she hilariously replied, "I'd let both those motherf***ers drown!"

"Ben, Puffy, you know I love you," she laughingly added.

Just don't expect any romantic reunion between J. Lo and Diddy any time soon. The "Booty" singer's boyfriend, 28-year-old Casper Smart, was also by her side at the party, where the couple happily mingled with fellow A-list guests like Demi Lovato and Nick Jonas.

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One thing's for sure -- J. Lo definitely had the time of her life at her own party.

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Getty Images

WATCH: Did Nicki Minaj Throw Shade at Jennifer Lopez for 'Anaconda' Performance?

And she deserves it after pulling double duty as a host and performer! Watch the video below to see seven times J. Lo proved she's a show-stopping goddess.

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