After having witnessed one of the most punk rock performances in the history of iHeartRadio and all of music history itself really, Green Day chats with 98-7FM's Kennedy about the least punk rock thing they've done backstage including growing their own vegetables backstage, a possible album name change, and Billie Joe's voice recovery tricks and tips.

It's hard to believe Billie Joe was hospitalized and without voice just a week ago. 

Click here for full coverage of the 2012 iHeartRadio Music Festival and check out the Green Day photo gallery.