Apple Music, the tech giant's new streaming service, went live Tuesday as the company tries to shakeup the music streaming market. The service began with the launch of Beats 1, an international radio station that will feature shows by high-profile artist hosts, and offered streaming of Taylor Swift's blockbuster "1989" album.

Last week, Taylor Swift threatened to boycott Apple Music, speaking up for artists who had complained that Apple would not pay for streams during the initial three-month trial.

Apple quickly reversed itself and Swift agreed to stream "1989" for the first time on Apple Music.

The tech giant is offering Apple Music to users who upgrade for free to its new operating system. But Apple eventually plans a version for users of rival Google's Android smartphones.

Apple is joining a crowded field led by Spotify, that says it has 75 million active users. Other competitors include Deezer, Google Play, Rhapsody and Tidal.