Taylor "High-Class Hooker" Momsen Picks a Fight With Rihanna

Outspoken young star tells Spin.com she's annoyed by pop princess Rihanna wearing leather

Another day, another precious gem from the mouth of Taylor Momsen. (Is this girl giving Megan Fox a run for her money in the mouthing-off department, or what?)

And this time, it's aimed at pop star Rihanna...

In an interview with Spin.com, in which the 17-year-old classifies her trashy style as "high-class hooker," Momsen is "very protective of what she considers 'rock.' "

She complains, "People think pop is rock, and the lines are getting blurred. Now Rihanna's wearing f--kin' leather jackets, and it's really annoying."

Then Tay-Tay says, "I'm figuring out who I am and what I want to be doing."

So it's OK for her to experiment but she calls out Rihanna on her style. Um, hypocritical much?

Yep, spoken like a true teenager.