Cardi B Twerks On best of Car While Fans Swarm Pop-Up Event

Cardi B put her rear end into drive at a pop-up event in New York City … throwing it back atop a black SUV while hundreds of fans swarmed around her.

The rapper held an event at a Washington Heights bodega on Saturday … which brought out fans just hoping to catch a glimpse of the megastar.

They got more than a glimpse … ’cause Cardi jumped on best of a car and danced around for the raucous crowd in a gray sweater and blue knee-high skirt — and, she started dropping it low to applause from the audience.

Check out the vid … Cardi’s got her hands on her knees, and she’s backing it up like only she knows how — occasionally flattening her skirt so it doesn’t raise up too high and reveal more than she wants to show.

It’s already been a busy weekend for Cardi … who took her daughter Kulture to a New York Fashion Week event Friday night — with the two twinning in fur ensembles.

Looks like Cardi’s werking hard this weekend — both as a mother and as a dancer!