Mitski’s New Track ‘Happy’ Is Anything But New York songwriter Mitski has released the second single from her new album Puberty 2, a track going by the name of ‘Happy’. Daunting, eerie, and beautiful all at one, ‘Happy’ is further confirmation that Puberty 2 will be one of the alternative greats of this year. Puberty 2 will be available June 17th. Leave a Reply Cancel Reply Your email address will not be published.CommentName* Email* Website Notify me of follow-up comments by email. Notify me of new posts by email.