It’s rare these days that a pop star becomes known for more than diva behavior. But Taylor Swift is famous for her industry clout—which is why we’re giving her a bonus spot on the MPW list. Sure, she rocked it in her day job with 1989, the fastest-selling album of the past decade, with four No. 1 hits and one of the largest-grossing North American tours this year. But by refusing to put her music on Spotify and then, in June, forcing Apple Music to change the way it compensated musicians during its trial period, she’s shifted the power dynamic back toward the artists. She’s also become an increasingly vocal advocate for female empowerment. Go, Team Taylor!

For more on newcomers and returns to the list, read “Who’s on? Who’s off? Fortune’s list of the Most Powerful Women has plenty of changes.”