Rihanna and Chris Brown Make Out at NYC Nightclub, Says Eyewitness (EXCLUSIVE DETAILS)

VMAs 2012: Rihanna
RiRi is set to take the stage at MTV's annual awards show.
It looks like music’s most notoriously on-and-off couple are back on.

Rihanna and Chris Brown were spotted at celebrity hotspot Griffin, a New York City nightclub, getting hot and heavy on the dance floor Monday night.

An eyewitness exclusively tells Celebuzz the two were “hugging and kissing, and they went to the back of the club alone together.”

What other steamy details can we reveal?

Rihanna showed up to the nightclub only five minutes after Brown had arrived with Bow Wow (other celebrities in the crowd included Dave Chappelle, Cassidy, Chris Rock and Tyson Beckford.)

The 24-year-old and Brown were set up at separate tables, two apart from one another, and our source says Brown immediately “climbed over the center to get to her.”

Once 23-year-old Brown made his way over to his ex-girlfriend, he removed his shirt and started “dancing on the table for Rihanna” and the two began “dancing together and being very smitten,” says the eyewitness.

The two certainly didn’t hide their affection for one another, as numerous people witnessed their dirty dancing and steamy kissing in the club.

Brown left Griffin first at approximately 3:50 a.m.; Rihanna exited only moments later.

And what about Brown’s girlfriend, Karrueche Tran? She was nowhere to be seen, according to the eyewitness.

A rep for the nightclub confirms to Celebuzz that both Rihanna and Chris Brown were in attendance last night.

What do you think of their public hook-up? Sound off in the comments section below.

Go around the world and learn where your favorite celebs are today in The Daily’s Buzz’s ‘Globetrotter’ segment. WATCH FULL SEGMENT BELOW. Watch The Daily Buzz each weekday at 4.30 pm ET.