Taylor Swift used her appearance at Billboard’s Women in Music Awards to fire the latest shot in her bitter battle with online music streaming service Spotify.

Swift recently pulled her catalog from Spotify, saying in July, “Piracy, file sharing and streaming have shrunk the numbers of paid album sales drastically.” On Friday, she boldly said at Cipriani Wall Street in front of power players including Aretha Franklin, Beyoncé, Ariana Grande, Iggy Azalea, Clive Davis and Janice Min: “I’ve taken this year to stand up for my value as a songwriter, as a businesswoman and a content creator. I’m open to . . . change and progress. I’m not open to the financial model that is currently in place.”

Swift wielded her clout as the only artist with a platinum album in 2014 — “1989,” which sold nearly 1.3 million copies in its first week — adding, “I think we can teach a younger generation about an investment in music. If you deliver them a bold statement, they will listen, and when you pour your life into an album, they will buy it.”

Her label Big Machine recently said Swift had been paid less than $500,000 in the last year from streaming. In comparison, her album was projected to hit $12 million in sales in its first week.

Honorees Grande, Azalea, Charli XCX and Jessie J made less serious speeches. Grande thanked her “nonna” for “teaching me to have compassion for the haters.” J said of her award, “This is a way of saying, ‘F–k, she sings loud!”

But it wasn’t the 20-somethings who stole the show. Idina Menzel joked, “I’m 43 years old, I’m a breakthrough artist?” She emotionally reflected on “many years of highs and lows. Years of obscurity and no work and frustration” when she was “dropped from so many labels” and “told countless times a Broadway singer can’t cross over.”

But “I’ve yearned for so long to be accepted by the people in this room,” she went on. “I never realized that if I didn’t stop caring . . . this moment would never happen.”

She said she “let it go” when “I made the decision to stop trying to find who I am [as a singer] and followed my heart.”