VF's Very Funny Girls (PageSix.com)

Helluva Green Room, Annie Leibovitz! Vanity Fair trots out our top female funnies in their April issue, knighting Tina Fey, Sarah Silverman and Amy Poehler on the cover as the new guard in comedy queens. As seen in the above glossy, the ladies channel pop tarts for the photog (it's doubtless Amy Winehouse ever got a laugh for poliical parody). Sarah does her best Amy, complete with ...