'We Are Young' from the album, Some Nights.The song was released on September 20, 2011.Musically, "We Are Young" is a power ballad that incorporates the genres of indie pop, alternative rock, and power pop. The song received generally positive reviews from music critics, with many noting the song as a breakthrough for the indie genre and praising the song's catchiness. "We Are Young" has attained commercial success worldwide and is already one of the biggest hits of 2012.