Sixx launched the clothing line "Royal Underground" in 2006 with Kelly Gray, formerly the co-president and house model of St. John. Initially the label concentrated on men's clothing before expanding into women's apparel. In 2010, Premiere Radio Networks launched nationally syndicated rock/alternative music radio programs "Sixx Sense" and "The Side Show Countdown" with both based in Dallas, Texas and hosted by Sixx and co-hosted by Jenn Marino.