The firm will officially unveil the Apple Music app at 11am by releasing an update to its iOS software.
Users will get a three month trial of the new service, after which it will cost $9.99 per month.
Apple described its all-new Music app as ‘All the ways you love music. All in one place.’
‘We want to give you the right song, at the right moment, all on demand,’ it said.
It will stream songs, and also feature a 24 radio station called Beats One, and a smart prediction service to recommend songs.
It is available as a single app on iOS and consists of three main features – a music service, a global radio station and a social network for artists to share with fans.
Apple Music will cost $9.99 a month or $14.99 for a family plan – both with a three-month free trial.
This includes ‘tens of thousands of music videos’ with no adverts.
The new service was introduced last month by Jimmy Iovine, who became an Apple employee when Apple bought his Beats.
‘It’s all the way you love music all in one place,’ he said.
‘Algorithms can’t do this, you need a human touch,’ he said.