Armstrong rehab stint forces Green Day cancellations

NEW YORK (REUTERS) - Green Day said on Monday they are cancelling their fall club tour and postponing early 2013 dates as frontman Billie Joe Armstrong continues treatment for substance abuse.

"Obviously the timing for this isn't ideal, but Billie Joe's well-being is our main concern," band member Mike Dirnt said in a posting on Green Day's website.

"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," he added.

Armstrong, lead singer and guitarist for the Grammy-winning rock band, sought substance abuse treatment late last month following an angry, guitar-smashing on-stage outburst in Las Vegas. Details of his substance abuse have not been released.