Today marks the 42nd birthday of Marshall Mathers also known as Eminem. Since debuting in 1999, the Detroit native has become one of the biggest superstars in music. Several companies have honored his skills on the mic by creating some very cool memorabilia after Slim Shady. From New Era to Casio, brands have acknowledged Em's greatness in unique ways.

The Jordan Brand has released two silhouettes in the past that pay homage to Marshall Mathers. Now those sneakers have become every sneakerheads fantasy, and the prices on eBay of the silhouettes have reached the $15,000 mark.

Eminem continues to dominate the rap game with his music and business ventures. As he celebrates his birthday today, we pay homage to the "Rap God" by showcasing 14 of the most rare Eminem collectibles.

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