Eminem -- no stranger to the Grammys -- is already a winner for his comeback album 'Relapse.' The 37-year-old rapper's first album in five years beat out Common's sexy electro, hip-hop project 'Universal Mind Control,' Mos Def's critically-acclaimed 'The Ecstatic,' Flo Rida's 'R.O.O.T.S.' and Q-Tip's 'The Renaissance.'

Eminem is the biggest winner in this category, topping Kanye West, who's won three Best Rap Album Grammy Awards. The Detroit-bred emcee has taken home four Grammys in this category throughout his career and has been nominated five times. Em has also won the Grammy for Best Rap Performance by a Duo or Group for the 'Relapse' single 'Crack a Bottle.' Eminem is set to take the Grammy stage tonight alongside Drake, Lil Wayne and Travis Barker. Grammy producers declined to reveal specific details about the set, but the rappers will likely perform their collaborative track 'Forever.'