¡Uno! (stylized in all caps) is the ninth studio album by the American rock band Green Day, released on September 25, 2012, by Reprise Records. It is the first of three albums in the ¡Uno!, ¡Dos!, ¡Tré! trilogy, a series of studio albums released from September 2012 to December 2012. Green Day recorded the album from February to June 2012 at Jingletown Studios in Oakland, California. This is the band's first album recorded as a quartet, as touring guitarist Jason White joined the band in the studio to give the studio recordings a more live feel. Artwork of the album Read more on Last.fm.

This is the first album Green Day has released since 2000’s underrated Warning that isn’t a rock opera. On paper, that sounded great. The result is, at times, wonderfully catchy and youthful. At others, its almost embarrassingly “just ok”. There are two more albums in this trilogy coming down the wire. Pray they got the best tunes.
The only saving grace of this horrendously unthoughtful effort is that Green Day’s veteran status prevents them from making anything truly awful. The production is nice and Billie Joe sounds as good as ever—it’s just too bad that the sound of Green Day flippantly riding their success is indistinguishable from three privileged teenagers in a band assuming they embody the punk aesthetic by default.