"Another Brick in the Wall" is a three-part composition on Pink Floyd's 1979 rock opera The Wall, written by bassist Roger Waters. "Part 2", a protest song against corporal punishment, and rigid and abusive schooling, features a children's choir. At the suggestion of producer Bob Ezrin, Pink Floyd added elements of disco. "Part 2" was released as a single, Pink Floyd's first in the UK since "Point Me at the Sky" (1968). It sold over four million copies worldwide and topped singles charts in fourteen countries, including in the UK and United States. It was nominated for a Grammy Award and was ranked number 384 on Rolling Stone's list of "The 500 Greatest Songs of All Time".