The worlds of music and film have always been linked, but it's particularly fun when they collide on screen. While real bands and musicians have made plenty of cameos in film, every now and then, a completely fictional band comes along that totally rocks. Every aspect — from the songs to the fashion — is so well executed it’s hard to believe the musical act isn’t genuine.

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Whether they’re the central focus or just a small component, a great made-up band takes a movie to the next level. You might even love the band so much that you start listening to them on their own… But good luck explaining to your friends that your new favorite rock group doesn’t actually exist.

Here are 10 fictional movie bands that rocked our world.

Gallery — The Best Movie Soundtracks of the 21st Century: