Recovering drug addict Nikki Sixx has accepted an offer to speak at the 18th annual National Alcohol And Drug Addiction Recovery Month luncheon on Capitol Hill in Washington, D.C. on 6 September (07). The Motley Crue star will become the first member of the rock world to share his story of surviving addiction at such an event, according to website Sixx was invited to speak by NAADAC, the association for addiction professionals.