The Beatles (album) stereo only. In the UK, the following album, "Yellow Submarine", was the last to be shipped in mono. The mono version of "The Beatles" was made available worldwide on 9 September 2009, as part of "The Beatles in Mono" CD boxed set. A reissue of the original mono LP was released worldwide in September 2014. The album's sleeve was designed by pop artist Richard Hamilton, in collaboration with McCartney. Hamilton's design was in stark contrast to Peter Blake's vivid cover art for "Sgt. Pepper's Lonely Hearts Club Band", and consisted of a plain white sleeve. The band's name, in Helvetica,
Sgt. Pepper's Lonely Hearts Club Band both began to cover rock music for the first time, with the latter changing its name to "Jazz & Pop" as a result. In addition, following "Sgt. Pepper", established American publications such as "Vogue", "Playboy" and the "San Francisco Chronicle" started discussing rock as art, in terms usually reserved for jazz criticism. Writing for "Rolling Stone" in 1969, Michael Lydon said that reviewers had had to invent "new criticism" to match pop's musical advances, since: "Writing had to be an appropriate response to the music; in writing about, say, "Sgt. Pepper", you had to try to write something as good