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"Green Day&amp;#039;s Billie Joe Armstrong is taking rehab very seriously, according to his bandmate Mike Dirnt. The &amp;#039;Oh Love&amp;#039; singer entered a treatment facility in September after an on-stage outburst at the iHeartRadio Music Festival in Las Vegas.  Green Day bassist Dirnt has now admitted that it has been quite difficult for Armstrong&amp;#039;s rehab stay to coincide with the release of new album Uno!. &amp;quot;Billie doesn&amp;#039;t take things lightly and he wouldn&amp;#039;t take rehab lightly, either,&amp;quot; Dirnt told Kerrang. &amp;quot;He&amp;#039;s in the middle of some really big things, but we&amp;#039;re going to pull through.&amp;quot; He continued: &amp;quot;It&amp;#039;s killing everyone. Green Day has never been a band that sits still, but sometimes you have to step back and let life go on rather than try to control everything.&amp;quot;  Warner Bros Records chairman Rob Cavallo disclosed this week that Armstrong could be in rehab through Christmas in order to fully deal with his issues. Armstrong&amp;#039;s rehab stint forced Green Day to cancel a headlining slot at the Voodoo Music + Arts Experience festival in New Orleans. They have been replaced for the festival by friends Metallica. Watch Green Day&amp;#039;s &amp;#039;Oh Love&amp;#039; music video below:      "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/music/news/a431990/green-days-billie-joe-armstrong-not-taking-rehab-lightly/>