taylor2pic460.jpgtaylor1pic460.jpgCourtesy: Spin Magazine

Taylor Momsen is finished trashing MIley Cyrus' style ... and now the 17-year-old Gossip Girl star is taking aim at Rihanna!

The Pretty Reckless lead singer tells Spin Magazine's September issue:

    “People think pop is rock, and the lines are getting blurred. Now Rihanna‘s wearing f***king leather jackets, and it’s really annoying."

As for her own style, Taylor tells the mag:

    "I dress for myself. Clearly, it's provocative, but it makes me feel good. And if the only reason it makes someone uncomfortable is because I'm 17, then that person's a scumbag because it shouldn't matter."

Pretty Reckless' debut album, Light Me Up, hits stores later this year.