'¡Tre!,' the third and final installment in the Green Day album trilogy that started with '¡Uno!' and '¡Dos!' is streaming at iHeartRadio ahead of its Dec. 11 release. '¡Tre!' originally wasn't supposed to drop until early next year, but the band pushed up its release schedule following the cancellation of a North American tour in the wake of frontman Billie Joe Armstrong's trip to rehab for undisclosed substance abuse issues.

How did such an ambitious undertaking even come about. "One day, I sprung it on the others: 'Instead of 'Van Halen I', 'II' and 'III,' what if it's 'Green Day I,' 'II' and 'III,' and we all have our faces on each cover?'" Armstrong told MTV back in June. "The last record [2009's '21st Century Breakdown'] got so serious. We wanted to make things more fun."

The 12-track '¡Tre!' is named after drummer Tre Cool -- not the Spanish word for number three, which would be "tres" -- and features his face on the cover, following the pattern of having Armstrong's mug on '¡Uno!' and bassist Mike Dirnt's on '¡Dos!' Green Day will follow the trilogy with 'Quatro,' a behind-the-scenes documentary due to premiere in theaters nationwide in 2013.