Rihanna is denying that she was caught snorting cocaine in a new viral Vine Credit: Kevin Mazur/Getty Images For Roc Nation

RiRi is not here for this! An instantly viral Vine video of what some claim shows Rihanna allegedly snorting cocaine surfaced on Tuesday, April 14. Quick to silence the rumors, the "Diamonds" singer explained in the comments section — with lots of salty language — what she was really doing in the footage.

"N—a your lame ass got some f—g nerve!!!" the 27-year-old wrote. "Any fool could see that's a joint that I'm basing with cigarette! Who snorts tobacco??!! FOH witcho 'never been to a rodeo so someone squeezing their nose means they're doing coke' lookin ass!!"

In the questionable video, the Barbadian star sits at a table while surrounded by drinks and two female pals dancing. Clad in a plunging black dress, she appears to be rolling a cigarette and, err, wiping her nose. 

Watch the crazy video above!