Pop star Taylor Swift has withdrawn her latest album from Apple's new streaming music service for refusing to pay artists during the first three months.
The 'Shake It Off' singer (25) branded Apple "shocking and disappointing".
It comes after she withdrew her entire catalogue from popular music streaming service Spotify in November.
In a letter published on her website, Swift (right) said: "I'm sure you are aware that Apple Music will be offering a free three-month trial to anyone who signs up for the service.
"I'm not sure you know that Apple Music will not be paying writers, producers, or artists for those three months.
"I find it to be shocking, disappointing, and completely unlike this historically progressive and generous company."
Swift said she was making a stand, not for herself, but for new artists or bands, young songwriters and producers who would not be paid for a quarter of a year's worth of plays.
"These are not the complaints of a spoiled, petulant child," she added. "These are the echoed sentiments of every artist, writer and producer in my social circles who are afraid to speak up publicly because we admire and respect Apple so much. We simply do not respect this particular call.
"I realise that Apple is working towards a goal of paid streaming. I think that is beautiful progress.
"We know how astronomically successful Apple has been and we know that this incredible company has the money to pay artists, writers and producers for the three-month trial period ... even if it is free for the fans trying it out," she continued.
Apple has declined to comment on Swift's remarks.