Nikki Sixx has had several spouses including Courtney Sixx (2014), Donna D'Errico (1996-2007), and Brandi Brandt (1989-1996). He has four children Storm Brieanne Sixx, Gunner Nicholas Sixx, Decker Nilsson Sixx, Frankie-Jean Sixx. Many people believe Sixx was only in the popular band Motley Crue. He was also affiliated with six(x ha g e t it) (Sixx:A.M., London, Brides of Destruction, Sister, and 58). 