The Detroit-based rapper is not only celebrating 11 years of sobriety, but also having "Stan" in the Merriam-Webster's dictionary.

20 years ago, Eminem kicked off his rap reign in 1999 with The Slim Shady LP, launching the hits "My Name Is," "Role Model" and "Guilty Conscience."

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The Slim Shady LP is the album before the money, fame, and the controversy that’s followed Marshall Mathers since. Later becoming the best thing to happen to the 2000s, the Detroit-based superstar is celebrating The Slim Shady LP 20th anniversary with some new merchandise. On April 26th, the "'97 Bonnie & Clyde" rapper will release a Slim Shady LP collection through his online store and unveil previously unreleased artwork from the album.

“YO! PSA – #SSLP20 stuff drops Friday!” he announced via Instagram. “Went back with @dannyhastings and @skam2official to make an anniversary capsule from the original + unseen Slim Shady LP art. More info and content this week before we drop Friday.”

Celebrating his second studio album and major label debut — which sold more than 18 million copies worldwide and won a Grammy Award for Best Rap Album — isn't the only milestone Eminem is commemorating. On April 20, Mathers posted about being 11-years sober, after treatment in Brighton, Michigan. He added in his post that he's "still not afraid."

Thirdly, as if he hadn’t had an effect on hip hop, culture, and white women’s panties everywhere, Merriam-Webster’s dictionary has added the word “stan” to describe hyper-devoted fans, as Eminem illustrates in his hit with Dido.

Nas helped spread the term, rhyming in his 2001 diss track against Jay-Z “Ether,” “You a fan, a phony, a fake, a pussy, a Stan.” Since then, the euphemism “stan” has morphed into a go-to slang term, and Merriam-Webster has now legitimized the word as both a noun and a verb.

As a noun, “stan” is defined as “an extremely or excessively enthusiastic and devoted fan,” while as a verb it’s defined as “to exhibit fandom to an extreme excessive degree.”

While many new-age Stans will be rocking Eminem’s newly-released merch, don’t forget about the Stans that annihilated their computers because of all the LimeWire downloads.