'Fashion Star' Finale: Jessica Simpson Gives Rockin' Advice (Exclusive Video)

From left: mentors Jessica Simpson, John Varvatos and Nicole Richie

The season two winner will be crowned in Friday night's episode of the NBC design competition.

It's down to the final three on Fashion Star, with a winner set to be crowned in Friday night's finale.

In the season two closer, the remaining designers -- Cassandra Hobbins, Daniel Silverstein and Hunter Bell -- are tasked to create their own collection for each of the retailers. Eliminated designers return to assist their teammates -- which isn't welcome news to all of them.

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The Hollywood Reporter has an exclusive clip from the finale, in which mentor Jessica Simpson gives Bell some advice on designing a rock 'n' roll-inspired look.

"I've been spending a lot of time with Hunter, and I would definitely say that I am now emotionally attached and emotionally involved," Simpson tells the camera.

The winning designer will have his or her collection sold in Macy's, Saks and Express.

Fashion Star airs at 8 p.m. Friday on NBC.