Friends, we've given up. We believe in mermaids before vampires, but Twilight is a force too powerful for our most poignant blog posts to defeat. Since we can't beat them, we are joining them. And so in advance of this Friday's New Moon premiere, we're taking a look back at the style evolution of the Twilight Saga's biggest stars.

We begin today with Robert Pattinson's maybe-lover Kristen Stewart, who has been walking carpet after carpet in a slew of brand-new designer clothes, including spring 2010 looks by Oscar de la Renta, Proenza Schouler, and Balenciaga. But there was a time in her not-quite-storied fashion career (she's only 19) when she'd pair these kinds of dresses with Converse sneakers. See it all in the slideshow.