Inside Rihanna's 'Styled to Rock'

Inside Rihanna's 'Styled to Rock'

Rihanna's Styled to Rock premieres this Friday on Bravo, and we have an inside look behind the scenes where all the magic happens!

ET was given the grand tour by veteran model Erin Wasson and musician/designer Pharrell Williams, who serve as mentor-judges for the design competition series (think Project Runway with rock-star flair), as well as RiRi's chief stylist Mel Ottenberg—all cast by the songstress herself.

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Each week, the threesome, with the help of celebrity guests, help whittle down twelve aspiring designers to one through a series of creative challenges.

"I don't know anything about sewing but I do know quality work when I see it. And I know when something is half-assed and when it feels like there is a certain amount of experience and skill, and then a signature," Williams says of his criteria for crowning the grand-prize winner who will ultimately receive a $100,000 cash prize, a fashion feature in Glamour magazine and the enviable chance to join Rihanna's style team.

Related: First Look at Rihanna's 'Styled to Rock'

Click the video for a behind-the-scenes sneak peek!

Styled to Rock's executive producer Rihanna will appear in the premiere episode of the series airing this Friday, October 25 on Bravo.