Billie Joe Armstrong "better," Green Day hits the road

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 is going back out on the road.

The Grammy-winning punk band announced new tour dates Monday.

• Green Day's Billie Joe Armstrong headed to rehab

The band canceled the rest of its 2012 club schedule and postponed the start of a 2013 arena tour after singer-guitarist Billie Joe Armstrong's substance abuse problems emerged publicly in September when he had a profane meltdown on the stage of the iHeartRadio Music Festival in Las Vegas.

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Stars in rehab

Armstrong told fans in a statement Monday that he's "getting better every day" and "the show must go on."

The tour is scheduled to begin March 28 at the Allstate Arena in the Chicago area.

The band released its most recent album, "Tre," on Dec. 11, more than a month ahead of schedule.