NASCAR's most popular driver, Dale Earnhardt Jr., is the special guest on this week's episode. USA TODAY Sports' Jeff Gluck talks with Earnhardt about the popularity of podcasts, his upcoming nuptials with Amy Reimann and the rigors of wedding planning. Earnhardt also talks about the value of his fan base and what they mean to him as he plans his return to the car next year after sitting out half of the 2016 season while recovering from a concussion.