Aerosmith's Steven Tyler is said to be doing "extremely well" after entering rehab in May.
The musician voluntarily entered rehab after relapsing, but he has now completed his 30-day stay and is said to be looking forward to performing again.
A source close to the Walk This Way singer, 74, told PEOPLE he is "doing extremely well and looking forward to being back on stage" on Sunday.
It follows comments from his family on Friday, who also said he was doing "amazingly well".
The publication said he had left the rehabilitation facility and actually stayed longer than the usual 30 days in a bid to ensure he doesn't lapse.
His relapse came less than a month before the band was set to re-launch their Las Vegas residency.
They said in a statement at the time: "As many of you know, our beloved brother Steven has worked on his sobriety for many years.
"We will continue our 2022 dates starting in September, and we'll let you know any further updates as soon as we can.
"We are devastated that we have inconvenienced so many of you, especially our most loyal fans who often travel great distances to experience our shows."
It concluded: "Thank you for your understanding and for your support for Steven during this time."
His fans were quick to offer support and accept the news, with one Twitter user writing: "Recover well. We've seen all too often the results of talent not looked after properly.
"Lost money for a few isn't as severe as the loss of another icon. It's time the industry as a whole made sure artists were ok all the time. These are people, not cash machines."
Speaking previously about his sobriety journey, Steven told GQ in 2019: "I couldn't do enough. I couldn't get high enough."
And he described how his bandmates and management staged an intervention in 1988 in a bid to get him sober.
Speaking to Haute Living he added: "They thought, 'Get the lead singer sober, and all our problems would be over.'
"So I got sober and, you know, it took me many years to get over the anger of them sending me to rehab while they went on vacation," Tyler told Haute Living. "But today, because of that moment… I am grateful and owe a thanks to them for my sobriety."
