"Over the last year while we were recording our trilogy, we posted multiple clips every week so fans can see parts of the recording process of ¡Uno! ¡Dos! ¡Tré!," said bassist Mike Dirnt. "¡Cuatro! brings our fans one step closer by giving them even more access and revealing what it was like for us to make these records."
Green Day spent the summer touring the world, including performances at the Reading and Leeds festivals in the UK and a show at London's Emirates Stadium that set a concert attendance record by selling all 60,000 of the venue's tickets for the first time.
Green Day is vocalist/guitarist Billie Joe Armstrong, bassist Mike Dirnt, and drummer Tré Cool.