Who What Wear with Hillary Kerr: Celebrity Colorist Matt Rez Shares His Must-Know Tips

Celebrity hair colorist Matt Rez is known for his transformational work, including making Hailey Bieber a brunette and Kendall Jenner a redhead—two moments that kicked off arguably the biggest hair trends in recent history. On this episode, Matt brings us inside his legendary hair transformations, discusses his signature mid-light technique, and, of course, offers his predictions for the next major color trend.