"Who's Next" is a rock album by the British band The Who, released in 1971. It features a mix of hard rock and progressive rock elements, showcasing the band's signature sound. The album includes popular tracks like "Baba O'Riley" and "Behind Blue Eyes," which highlight the band's musical innovation and lyrical depth. The album is notable for its use of synthesizers, particularly in "Baba O'Riley," which is often regarded as one of the greatest rock songs of all time. "Who's Next" received critical acclaim and has influenced many artists in the rock genre, solidifying The Who's legacy in music history.