H&M Exclusive Conscious Collection Already Worn By Amanda Seyfried, Michelle Williams (PHOTOS)

Here's a line we've heard before: H&M is about to release a sure-to-be-hot new collection.

But this time, there are no posh designers involved: the company has created an "Exclusive Conscious" collection of red carpet-ready looks that are already gracing the silhouettes of many a Hollywood A-lister.

In keeping with H&M's eco-friendly Conscious clothing initiative, all of the pieces from the Exclusive line have been made from sustainable materials like organic cotton, hemp and recycled polyester.

Style-friendly AND good for the planet? We're on board for that!

And, because they can, celebrities have already snagged advance pieces from the collection and taken them from a stroll down the red carpet. Amanda Seyfried wore the blue tuxedo blazer and shorts at her "In Time" London premiere, an outfit that sent tongues wagging because, well, Amanda looked amazing in it.

Oscar nominee Viola Davis has reportedly been seen in the hot-pink sleeveless top and skirt, and Kristin Davis wore a green embroidered dress from the collection to a Vanity Fair dinner.

But here's our favorite part: remember when Michelle Williams wore an H&M custom-made gown at this year’s BAFTAs? A top and skirt inspired by Michelle’s exclusive gown will be available in selected H&M stores when the Exclusive Conscious collection is launched.

We're kind of stoked to see H&M launching its own new collection; as much as we love the designer collabs (Marni! Versace!), sometimes it's refreshing to see a company go back to its time-tested basics.

Scroll down below to see the lookbook for this Exclusive Conscious collection, which will be available starting on April 12 in around 100 stores H&M worldwide, as well as selected looks on-line.