Styling duo Rob Zangardi and Mariel Haenn — often referred to simply as "Rob and Mariel" — are proof that teamwork makes the dream work. Zangardi and Haenn are behind the strikingly stylish looks of Jennifer Lopez, Ciara, Pharrell Williams and Rachel McAdams, earning the shared ranking as one of the most powerful stylists in Hollywood. For the past four months, Zangardi and Haenn have also been dressing their longtime client Gwen Stefani for the ninth season of "The Voice," which wraps up with a live finale episode this Tuesday, Dec. 15. This is Stefani's second season on the musical competition show since her debut as a judge, coach and performer during its seventh season (Christina Aguilera took her place during season eight). When it comes to their creative process, Zangardi and Haenn find the only difference between pulling looks for a twice-weekly television show compared to a one-time red carpet appearance or live performance is volume. "We don't want to repeat similar looks week to week on the show so we try to think of what we've already done, as well as ahead, for a nice variety," says Haenn.
The two prep for an episode by pulling inspiration for each look and also thinking about new and inventive ways of interpreting Stefani's overall style. The judges' big red chairs, which have become a novelty for the show, are also something to consider, according to Zangardi. "We try to make sure that the look has the most interest from the waist up." Once they've filled a clothing rack of favorites, the stylists pitch them to Stefani herself. It's a smooth process: "Thankfully, our favorites are her favorites," says Zangardi. Once an outfit has been chosen, Stefani's hair and makeup team, comprised of Danilo and Gregory Arlt, chime in on how to finish the final look. "Sometimes it's the hair or makeup that brings the clothes to life," says Haenn.
Another advantage of a regularly scheduled primetime series is that it presents many opportunities to experiment. A look that comes to Zangardi and Haenn's minds is a Wolford turtneck bodysuit that they topped with a houndstooth-print harness by Ann-Sofie Back and paired with Capezio fishnets and ankle boots. Playing with new looks also allowed Stefani's style to evolve over the course of the 27-episode series. While Zangardi and Haenn stayed true to the singer's edgy signature look, they noticed her aesthetic has evolved along the way to include more feminine and sexy details.
Click through our gallery to learn more about Rob and Mariel's favorite Stefani looks from "The Voice"'s latest season. You can catch Tuesday night's live finale episode on NBC at 8/7 CST.