Rihanna's use of marijuana is no secret, but the singer is facing some backlash after she posted a cannabis photo on Twitter and Instagram.

Early Thursday morning, the singer tweeted a photo of a bud with the caption, “This nug look like a skull or am I just....?”

Several of her Instagram followers responded with disapproval, according to the Daily Mail.

One user said, “Wow wat a good influence you are on young girls ... not!” @badgalriri (sic), while another commented, “I dont understand what she tryin to prove through pics of drug everyday.” (sic)

Reactions to the photo have been mixed, as several commenters have engaged Rihanna, agreeing that the bud is shaped like a skull; the photo now has over 90,000 likes.

Rihanna’s partner in crime, Chris Brown is also privy to sharing photos of his marijuana use.

Last month, Brown posted several photos of himself smoking at a café in Amsterdam, where he was on a stop for his European tour.

In one photo, Brown simultaneously smoked three joints; the caption read, “Oh don't worry. It's medicinal!! Lol”

Rihanna and Brown, who seem to have reconciled their tumultuous relationship, are no strangers to partaking in marijuana together, and often share those photos via social media.

A photo Brown posted on Instagram shortly after he reopened his Twitter account last month featured him and Rihanna sitting together while he smoked.

A photo Rihanna shared on Christmas Day shows the two posing in front of a car while Rihanna smokes.

An insider told the Mail that Brown and Rihanna even smoked together on Christmas Day; they also reportedly were spotted at the Lakers-Knicks game.

“They went back to his place right after the game and chilled out and smoked,” the insider said.

“They just kicked it real tough and Chris got what he wanted for Christmas and a little more - he took a long nap and Rihanna was right there next to him.”