VEVO/YouTube
It doesn't appear that any of Swift's songs are currently available on Spotify, and a Spotify spokesperson confirmed to Business Insider that she removed all of her albums from the streaming service.
Artists don't make nearly as much money putting their music on Spotify as they do selling digital albums and songs on services like iTunes.
Earlier this month, Jimmy Buffett asked Spotify CEO Daniel Ek for a raise, saying artists who stream their music on Spotify are "at the end of the pipeline" when it comes to the money Spotify pays labels for permission to stream albums.
Spotify says it pays 70% of its revenue to labels - which will amount to about $1 billion this year - but some artists feel they don't get a big enough cut.
The streaming service revealed last year that it pays artists an average of less than a penny per play.
In an op-ed for The Wall Street Journal earlier this year, Swift wrote that "piracy, file sharing and streaming have shrunk the numbers of paid album sales drastically."
Swift wrote the editorial to advocate for the future of music, noting that she hopes artists "don't underestimate themselves or undervalue their art."
Spotify is working hard to change Swift's mind. Here's a statement that was just posted on their website:
We love Taylor Swift, and our more than 40 million users love her even more - nearly 16 million of them have played her songs in the last 30 days, and she's on over 19 million playlists.
We hope she'll change her mind and join us in building a new music economy that works for everyone. We believe fans should be able to listen to music wherever and whenever they want, and that artists have an absolute right to be paid for their work and protected from piracy. That's why we pay nearly 70% of our revenue back to the music community.
PS - Taylor, we were both young when we first saw you, but now there's more than 40 million of us who want you to stay, stay, stay. It's a love story, baby, just say, Yes.
Swift initially refused to release her 2012 album "Red" on Spotify, but relented several months later.
Spotify is valued at $4 billion and reportedly wants to sell for more than $10 billion, according to The Wall Street Journal.
This highlights one issue with Spotify's business model - artists have quite a bit of power over the streaming service if they can yank their albums at any time.