Miley Cyrus Miley Cyrus

Miley Cyrus says that a photo that surfaced of her smoking pot is not real.

"I don't have an Instagram," Cyrus clarified on Twitter.

Check out child stars gone bad!

On Tuesday, someone with the Instagram account mileyxxcyrus posted this photo of a blonde that looks like the 20-year-old, but whose face is covered with a cloud of smoke. "High as f---," the caption read.

This isn't the first time Cyrus has been associated with marijuana. In November 2011, a video filmed at her 19th birthday showed Cyrus being presented with a Bob Marley birthday cake. "You know you're a stoner when your friends make you a Bob Marley cake. You know you smoke way too much f---ing weed," she said in the video.