Teen Mom 2 star Jenelle Evans would rather GO TO JAIL than submit to random drug testing while on probation. That's...dedication? She also (allegedly) smoked up while pregnant with her second child. And probably her first.
Miley Cyrus proudly proclaims that she smokes the Sweet Leaf and blasts pictures of marijuana all over her Bangerz tour. The show itself kind of seems like one big hallucination, so maybe she's doing more than just mariuana.