Classic Rockers Pink Floyd Head to Spotify

Pink Floyd, one of the classic rock holdouts to the platform, will come to Spotify if listeners stream the song "Wish You Were Here" 1 million times

The group announced the initiative via its Twitter feed:

Help stream Wish You Were Here 1 million times to unlock Pink Floyd's catalogue on @Spotify: http://t.co/PpNjKAm3AX #floydcountdown

- Pink Floyd (@pinkfloyd) June 13, 2013

The music service announced the program on Friday. Pink Floyd's catalog is owned by EMI Records. Spotify inked a deal with EMI in 2011, but Pink Floyd's catalog - including Dark Side of the Moon, which sold 50 million copies worldwide - was not included in that deal