Occupy Wall Street Leader Calls BS on Miley Cyrus Vid -- Singer is ALL TALK!

11/30/2011 3:30 AM PST

Miley Cyrus -- Occupy Wall Street Leader Calls BS on Cyrus' Vid saying Singer is ALL TALK!

An influential leader in the Occupy movement wants less talk and more action from Miley Cyrus -- telling TMZ, the singer's recent music video in "support" of the Occupy movement is nothing but an empty gesture.

Priscilla Grim -- co-editor of "The Occupied Wall Street Journal" -- tells us, Miley’s music video tribute “rocks" in spirit ... but she doubts the singer has the cojones to actually hit the streets.

Priscilla tells us, “I double dog dare [her] to fight on the front line of economic civil rights at LA City Hall" -- adding, "Revolutionaries occupy, Ms. Cyrus."

Miley’s “Liberty Walk” video (below) encourages protestors to never “give up” and features powerful images from the worldwide Occupy movement.

So far, no word on whether Miley will accept Grim's challenge.