 After a successful drug rehabilitation at the age of 31, Sebelia enrolled in sewing classes at Los Angeles Trade-Technical College.It was there that he immediately fell in love with design, and shortly after he started the clothing line Cosa Nostra.Among the label's celebrity clients were Dave Navarro, Gwen Stefani, Jennifer Lopez, Red Hot Chili Peppers, Marilyn Manson, Elton John, Madonna, and Tommy Lee.