Adrienne Bailon and Rita Ora probably had loads to talk about during their night out in NYC!

It turns out Rob Kardashian’s former flames happen to be close pals — close enough to hang out in the Big Apple and document their fun trip on Instagram Tuesday night.

“NYC Nights X Rita,” the Cheetah Girls star, 30, captioned the shot.

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The beauties smirk at the camera, as Adrienne holds the 23-year-old songstress’ blonde head.

“My f*$kin Babies,” wrote Rita, who will make her big screen debut as Christian Grey's sister, Mia, in Fifty Shades of Grey next year.

Both gals look stunning in a full face of makeup and black sleeveless tops.

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In August, Adrienne defended her relationship with Rob’s ex on an episode of The Real.

“If you are over that man, why can’t you be cool with the new girl?” she said.

Scott Disick Posts Vintage Pic of Pre-Fame Rob, Khloé and Kourtney Kardashian

“In my case, I actually was really good friends with Rita Ora before, and then when they were no longer together, it was never an issue.”

In fact, the former Disney star went on to sing the entertainer’s praises.

“I think she’s a dope chick. I think she’s fly. She dresses fly. I love her music. She’s got a great personality and we all hang out together.”

Last year, Rob accused who we all assumed to be the British musician of sleeping with “nearly 20 dudes” while they were together.

“Rob’s d*** was wack, I had to get it somewhere else,” Rita reportedly tweeted, which caused her reality star ex to reply, “So you let me get you pregnant and you let others [have unprotected sex with you.]”

The term “Rita Whora” instantly started trending.

Both tweets were deleted, and it was later proved that Rita’s offensive post was the result of a fake fan’s account.

But that didn’t stop Rob from publicly airing his frustrations.

“How can a woman who is so busy trying to start her own career have time to be with so many dudes all while in a relationship?!” he tweeted.

“I speak truth. I’m a very real dude and everything I say I mean… But never called anyone specific a whore and said any names. You did.”

Shortly following the breakup, Rob admitted to gaining 40 pounds on an episode of Kourtney and Kim Take Miami.

“All I did was waste a lot of money and gain 40 pounds,” he told his sisters. “I need to focus on me. That’s all I wanna be about.”

Rita Ora Set to Play Christian Grey's Sister in Fifty Shades of Grey

Five months later, Adrienne opened up about her two-year romance from 2007 to 2009 with the 26-year-old.

(Photo Credit: Getty Images)

On an episode of Keeping Up With the Kardashians, he read an e-mail out loud from her “new man,” who warned Rob to stop calling her.

Turns out it was actually Adrienne!

“What all y’all thought was that it was written by my boyfriend,” she explained on The Real. “It was not written by a boyfriend. That was written by me and my girl sitting on the sofa one day deciding to ourselves, ‘Well, how can we make him stop calling me?’”

OUCH.

Single Rob now resides in Florida – he made the move from LA three months ago in an attempt to stay out of the spotlight.

“He finally realized he needs to focus on himself and not do things the way his sisters do,” an insider dishes to Life & Style. “He feels he needs a clean break.”

Do you think two people who previously dated the same people can be friends? Sound off in comments — and on Facebook and Twitter!