Watch: Eminem's Daughter Alaina Scott Gives Birth, Welcomes First Baby With Matt MoellerEminem's latest achievement is a huge stepping stone in his sobriety journey. The 15-time Grammy winner-who has been open about his past addiction to prescription pills-shared he's celebrating 18 years of sobriety. In an April 20 Instagram post, Eminem (born Marshall Bruce Mathers III) shared a zoomed in photo of himself wearing a graphic T-shirt while holding up a coin to mark the special milestone.