Marshall Mathers is giving fans a powerful reminder that sometimes the loudest statements are made in just a few words - or Roman numerals, as it were. The rap icon, who is of course known to the whole world as Eminem, just marked a major personal milestone. And true to form, he did it with understated cool and a whole lot of meaning behind the scenes. On Monday, the Lose Yourself legend took to Instagram to share a snapshot that said it all. Rocking a throwback-style tee and holding up a sobriety coin, Eminem quietly revealed that he has officially reached 18 years clean and sober.