Greenday Frontman Billie Joe Armstrong is going to take a holiday, but in rehab. A public meltdown at the iHeartRadio Music Festival prompted Billie’s bandmates to be apart of the intervention. The meltdown started when Billie learned that iHeartRadio producers cut down Green Day’s live set by 20 minutes, he went ballistic. The band later issued a statement apologizing for the incident. A source close to Green Day said that Billie’s trip to rehab for alcohol and substance abuse is long overdue.