We're told the singer is totally clean and sober, doing "amazingly well" and looks good physically too -- our sources say he's at a healthy weight and his skin looks great.
As for the rest of his recovery, we're told Steven's realistic, he understands he's fighting a lifelong problem and recognizes his addiction ... so everyone's hopeful he'll stay clean and sober.
It was back in May when Aerosmith announced, "As many of you know, our beloved brother Steven has worked on his sobriety for many years. After foot surgery to prepare for the stage and the necessity of pain management during the process, he has recently relapsed and voluntarily entered a treatment program to concentrate on his health and recovery."
The band was supposed to kick off a string of shows in Vegas in June, but the gigs were canceled as a result of Steven's treatment ... our sources say Steven will be ready to go for the shows scheduled in Vegas for June.