66 years old (Born on December 11, 1958)
Happy Birthday, Nikki Sixx! From rocking stadiums worldwide with Mötley Crüe to inspiring countless fans through your powerful storytelling in Sixx: A.M., you've truly mastered the art of turning life into legendary music. Your bass lines and rebellious spirit have defined generations—proving that rock 'n' roll never ages, it just gets louder.Recently, your memoir "The First 21" reminded us all how far you've come—from wild nights on Sunset Strip to becoming a celebrated author and devoted family man. Keep defying expectations and living life at full volume; here's hoping this birthday is as epic as your career!