There was some pics that came out a while back that claimed Selena Gomez was smoking outside of a liquor store. Not sure this pic is kinda grainy and you really can't even see if there is a cigarette in her hand.
I did read an article that she said she had never smoked before until she did a Spring Breakers thing where they actually had to show her how to smoke a cigarette.
So there really aren't that many pics out there of Selena Gomez smoking just a few where maybe she was but can't tell for sure. She would be 19 years old here.