Maybe Chief Keef is finally starting to change.

On his way to the rehab center in Los Angeles where he'll be serving out his 90-day drug rehabilitation, the Chicago MC proclaimed that he will no longer smoke marijuana. He also said that a driver will now be taking him places rather than his BMW, which he was caught in last May going 55 miles over the speed limit.

The reasoning behind these changes? Well, according to Keef, he's grown up in the past couple of weeks. We'll see if that's the case from here on out.

[Via TMZ]