Frank Feranna, Jr., later known as Nikki Sixx, was born on December 11, 1958, and was raised jointly by his mother and grandparents shortly after his father left the family. After becoming interested in music, Sixx moved to Los Angeles at the age of 17. He joined the group Sister, but was fired soon after recording a demo along with bandmate Lizzie Gray. They formed the band London, but Sixx left in 1981, and the bassist founded the heavy metal band Mötley Crüe with drummer Tommy Lee, guitarist Mick Mars and singer Vince Neil. In 2007, Sixx, along with DJ Ashba and James Michael also formed the hard rock band Sixx:A.M. The group is a combination of all of the members’ last names.