Rapper 2 Chainz has reportedly run into more trouble with the law after airport police in Los Angeles found him in possession of marijuana and Promethazine on Tuesday (11Jun13).

The I'm Different hitmaker has been booked on felony narcotics possession, according to Tmz.com, after cops stopped him from boarding a plane at Lax.

The rap star, real name Tauheed Epps, went public about his love of pot on Monday (10Jun13) in an effort to play down reports he was involved in a shooting incident in San Francisco, California on Sunday (09Jun13).

Local police reports suggested the Spend It star and his entourage were the victims of a street robbery, but 2 Chainz insisted cops had their facts all wrong and tweeted that he and his pals simply got high smoking marijuana before his performance at the Oakland Summer Jam concert.

He wrote, "Rule #1 if a rapper gets robbed people usually post (photos of) items that has (sic) been taken. Rings, chains, watch, money etc. Rule #2 if a rapper gets shot he usually go to hospital or dies. Rule #3 we definitely got geeked up (high) in San Fran, best smoke in the world. 2 blessed 2 stress."

His latest run in with cops isn't the rapper's first drug bust this year (13) - he was arrested on suspicion of marijuana possession in Maryland in February (13), but found not guilty two months later.