Claim: Eminem has won Grammy Awards.
Evidence: After his debut album Infinite -LRB- 1996 -RRB- and the Slim Shady EP -LRB- 1997 -RRB- , Eminem signed with Dr. Dre 's Aftermath Entertainment and subsequently achieved mainstream popularity in 1999 with The Slim Shady LP , which earned him his first Grammy Award for Best Rap Album.