Rock or Bust is a studio album by Australian hard rock band AC/DC. It is their fifteenth internationally released studio album and the sixteenth to be released in Australia. It is the shortest studio album ever released by the band; at approximately 35 minutes, it is two minutes shorter than their previous shortest album, Flick of the Switch, which was released in 1983. Rock or Bust also was the group's first album without founding member and rhythm guitarist Malcolm Young, who had retired from the band in 2014 due to health concerns, although he co-wrote every track on the album. Bass guitarist Cliff Williams has also retired since Rock or Bust was released, drummer Phil Rudd was unable to participate in the supporting tour after being sentenced to house arrest, and vocalist Brian Johnson was forced to exit the band after the fifth leg of the album's supporting tour as a result of hearing loss.
The group released the debut single from the album, titled "Play Ball", on 7 October 2014. The song has been a commercial success, reaching the top 40 charts in various countries such as Spain (at number 28), France (at number 39) or Switzerland (at number 19).
Rock or Bust peaked at #1 in 12 countries, including Australia, Canada, Germany and Sweden. It reached the top 5 in a further 12 countries, including New Zealand, the United Kingdom, the United States and Italy.