From left, Tre Cool, Billie Joe Armstrong and Mike Dirnt of Green Day pose in the press room at the iHeartRadio Music Festival on Sept. 21, 2012, in Las Vegas. / Getty
Green Day has scrapped the remainder of its 2012 club tour -- and also postponed early 2013 arena dates -- so Billie Joe Armstrong can get better.
The singer/guitarist entered rehab for substance abuse in September following an expletive-filled rant at the iHeartRadio Music Festival in Las Vegas.
"Obviously the timing for this isn't ideal, but Billie Joe's well-being is our main concern," bass player Mike Dirnt said in a statement. "We are happy to say that Billie Joe is doing well, and we want to thank you all for the outpouring of support and well wishes that we have received, and we can't wait to see you all again soon."
New dates for the rescheduled arena shows will be announced soon.
The trio also moved up the release date of "Tre" from Jan. 15 to Dec. 11. It's the third set in a trilogy of albums, released this year.
"We feel bad we have to delay our tour, so to make up for it we want to give our fans the music earlier than we had planned," said drummer Tre Cool. "If we couldn't be there to play it for you live, the least we could do was give you the next best thing."
The second release in the trilogy, "Dos," will be out on Nov. 13.
Check out the trailer for "Dos":