Justin Bieber, Ariana Grande allegedly smoking weed?

The scourge of Calabasas, Ferrari abuser Justin Bieber is allegedly a pot head and taking pop princess and Nickelodeon star Ariana Grande down the Highway to Hell with him.

TMZ published the tiny terror of the 91302 lighting up and smoking what looks to be a giant joint.

But wait! TMZ says the Instagram photo and weed-smoking picture is a fake!

A source close to Justin and Ariana told TMZ that the girl is definitely not Ariana and that the photo was cropped to make it look like Justin is holding the cigarette.

Meanwhile... Lindsay Lohan is thinking of opening a lucrative celeb rehab center.

Further Reading on M&C

Ariana Grande Biography - - Ariana Grande Movies - Justin Bieber Biography - - Justin Bieber Movies -