It sort of involved Taylor Swift too.

By Jessica Goodman
Updated August 17, 2015 at 11:23 PM EDT
Credit: Ian Gavan/Getty Images; Dave J Hogan/Getty Images

Calvin Harris and Zayn Malik got into it on Twitter after Malik retweeted side-by-side photos and quotes comparing Taylor Swift and Miley Cyrus’ stances on music rights and streaming services.

The tweet was posted by @FemaleTexts and juxtaposed a Time magazine article in which Swift defended her decision to take her music off Spotify, and a W Magazine story in which Cyrus said, “I’ve made my money. If no one buys my album, cool. It’s fine.” The account wrote, “The difference is astounding.”

Harris, who is currently dating Swift, responded to Malik, and the two went back-and-forth:

Later, Louis Tomlinson — Malik’s former bandmate — appeared to take sides in the debate by favoriting Harris’ initial tweet at Malik.

Swift has been vocal about her position on streaming services and artist royalties since writing an op-ed in the Wall Street Journal, detailing why she wouldn’t put her music on Spotify. Earlier this summer, she wrote a letter explaining that she wouldn’t put her catalog on Apple Music, but reversed her decision after Apple promised to pay artists during the service’s free three-month trial.