Legendary rap artist Eminem is celebrating 11 years sober.

Eminem, who was born Marshall Mathers, posted a brief message on social media noting his sobriety. In addition to a medallion with the Roman numeral XI for 11, he said "11 years - still not afraid.," likely a reference to his 2010 hit single "Not Afraid."

The international best-selling superstar struggled with substance abuse for years before getting clean in 2008. He says he nearly died from an accidental overdose in 2007. In interviews, he said when his addiction was at his peak, he was taking as many as 20 pills a day.

"I used to get pills wherever I could," he told The New York Times. "I was just taking anything that anybody was giving to me."

Mathers says he has been able to stay off drugs through the support of his children, and a new "addiction" to exercise, specifically running.

Eminem has sold more than 220 million albums worldwide, including his 2018 album "Kamikaze" which went number one in the United States and received platinum certification.

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Images courtesy @Eminem on Instagram and Twitter.