It's official: Celebs have fully embraced ethical fashion, and I couldn't be happier! From London to LA, actors such as Amanda Seyfried and Michelle Williams have been spotted wearing looks from H&M's Exclusive Glamour Collection, an extension of the brand's Conscious Collection.

This isn't H&M's first foray into the sustainable fashion market, but it is certainly its most high-end endeavor to date. Like previous Conscious Collections, all the pieces are made from sustainable materials such as organic cotton, hemp, and recycled polyester. Here, Amanda Seyfried rocks a super-cute matching shorts-and-blazer number from the collection.

Oscar winner Viola Davis wore her hot-pink sleeveless top and skirt at the 2012 Santa Barbara International Film Festival in January.

Demure as always, Kirsten Davis opted for a ladylike dress, and paired it with a Rachel Roy clutch that benefits OrphanAid Africa. It's safe to say that the red carpet has never looked greener, so thank you H&M for helping us make ethical fashion more than just a trend!

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