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Puberty 2 is the third studio album by Japanese-American singer-songwriter Mitski, released on June 17, 2016, via Dead Oceans. The album is her most critically acclaimed to date, and was named one of the best albums of the 2010s by several publications. Musically, Puberty 2 is a departure from Mitski's previous work, featuring a more experimental and raw sound. The album explores themes of adolescence, sexuality, and mental health.