AceShowbiz - Tiffany Haddish seemingly had a great time attending Usher's Las Vegas residency. A video that surfaced online showed the "Girls Trip" grinding on the "Love in this Club" crooner as she joined him onstage.

The 42-year-old got sultry with the musician when he performed on Friday night, August 26. At first, the two had a slow dance before the singer stood up behind the comedienne while singing to her.

Following the fun gig, Tiffany took to Instagram to share a video from the concert as she was enjoying the music in the crowd. "Usher killing it in Las Vegas!!!!" she gushed in the caption.

Earlier this month, Tiffany revealed in an interview that she reached out to Usher before she made jokes about herpes. "I never thought you could just say horrible things about somebody and think they're not going to slap the s**t out of you, and I think that's because I grew up in foster care," she first told Cosmopolitan.

"I check and verify with people. If I can't say it to your face, I shouldn't be able to say it," the ex-girlfriend of Common continued explaining. "Period. That's how I draw the line."

Tiffany also said that the rule applied when she made jokes about Usher having herpes. "I got this joke, 'I curse you out with joy. I hope that you spread it. I hope you spread it like Usher spreads herpes.' I have said that in front of Usher," she divulged.

"Usher said, 'Your a** is crazy.' I said, 'Yeah, well, there's a rumor out there saying you got herpes. I don't know if you do or don't, but that s**t is funny,' " she recalled her conversation with the singer, who was accused of exposing multiple individuals to the herpes virus without their knowledge or consent. "He's like, 'Yeah, it is.' "

Should the "Yeah!" hitmaker responded differently, Tiffany explained, "If he had said, 'Tiff, don't say that no more. I don't like it. I'm not comfortable with you saying that,' I would stop saying it."