Rihanna phone tattoo car shots chris brown corona beer drinking alcohol open container

Maybe she was just going from her car to the studio ... but still! Rihanna knows better than to walk on the streets of West Hollywood with an open container of beer.

The sexy songstress, carrying an almost-empty bottle of Corona, has been spending long hours working on her new music.

Although the beer bottle is a no-no, we do give her camoflauge jacket and Louis Vuitton bag a thumbs up.

Oh, RiRi ... never a dull moment when you're around.