H&M is giving its eco-friendly Conscious Collection a red-carpet spin this year. In addition to its regular fare of cute Summer dresses and floral prints, H&M is introducing an Exclusive Glamour Conscious collection, focusing on dressier party looks made out of sustainable materials like organic cotton, hemp, and recycled polyester. We couldn't be more excited, and so far, the collection has garnered quite a celebrity following: Amanda Seyfried was spotted in the collection's bright blue short suit at the In Time premiere in London, Michelle Williams opted for a custom two-tone gown at the BAFTAs, Viola Davis donned a hot pink two-piece number, while Kristin Davis wore a customized version of H&M's organic cotton embroidered dress at a Vanity Fair party in LA. The line hit stores TODAY. Check out every piece from the special Exclusive Glamour Conscious Collection, plus campaign images, in the slideshow now.