Now That's What I Call Music or Now 1 is the first album from the popular Now! series that was released in the United Kingdom in 1983. Initial pressings were released on vinyl and audio cassette, with a re-release on CD in 2009 to celebrate the 25th anniversary of the album and series,[1] followed by another re-release for Record Store Day on 18 April 2015.[2] It debuted at number seven on the UK Albums Chart and then climbed to number one a week later, staying at the top for five non-consecutive weeks.