Apple looks set to launch its 'iRadio' music streaming service on Monday after Sony Music signed on at the last minute.
The Californian tech giant is said to be prepping a service similar to Pandora internet radio, where customised 'stations' can be created based on a users' interests and mood.
While not a direct competitor to Spotify and Rdio, the move is a big step for Apple which has previously relied mainly of straightforward music purchases through its iTunes store.
According to Billboard Sony had been the last of the three major labels, alongside Warner and Universal, to sign up to the service. Now it's on board the way is clear for Tim Cook to make the announcement.
It is thought that the ad-supported service could be unveiled at Apple's WWDC conference, which takes place later this month, alongside new version of its iOS and OS X mobile and desktop software.
But as ever Apple is maintaining its usual silence ahead of the conference, which starts 10 June. So don't expect to find out too much about the new service until Cook takes to the stage.