It's unclear at the moment how soon we will see Green Day's Billie Joe Armstrong performing live on stage again, but as the punk trio's singer seeks help for substance abuse issues he will remain in the public eye on "The Voice."

Despite checking into a rehab facility over the weekend following a guitar-smashing, expletive-filled tirade at the iHeart Radio Festival in Las Vegas, Deadline reports that Armstrong will still mentor the singers on Christina Aguilera's team on "The Voice."

Armstrong's segments on the hit NBC singing competition were reportedly taped this summer, so they will not be affected by recent events.

Green Day announced on Sunday that Armstrong was seeking help with [article id="1694286"]unspecified substance issues[/article].

"Billie Joe is seeking treatment for substance abuse," read a statement on their Facebook page. "We would like everyone to know that our set was not cut short by Clear Channel and to apologize to those we offended at the iHeartRadio Festival in Las Vegas. We regretfully must postpone some of our upcoming promotional appearances."

Armstrong launched into a rant during Green Day's Friday-night performance at iHeartRadio after being told that the band needed to wrap up their set, shouting "I'm not f---ing Justin Bieber, you motherf-----s. You've got to be f---ing joking ... I got one minute left." Green Day then smashed their instruments before departing the stage.

And earlier this month, Green Day were also forced to cancel a concert in Italy after Armstrong was hospitalized. His bandmates would subsequently tell MTV News that he had [article id="1693261"]"severe dehydration,"[/article]
 though he recovered in time to perform at the 2012 MTV Video Music Awards.

Green Day will release the first in a trio of albums on Tuesday, [article id="1694195"]¡Uno!,[/article] and they are slated to kick off a [article id="1693486"]tour[/article]
 in November.