Ryan Daniel Montgomery, known professionally as Royce da 5'9", is an American rapper. Best known for his association with fellow Detroit rapper Eminem, they became acquainted in 1997 and formed the hip hop duo, Bad Meets Evil the following year. Their 2011 single, "Lighters" peaked at number four on the Billboard Hot 100 and preceded the release of their debut extended play (EP), Hell: The Sequel (2011). The song and its parent EP, which debuted atop the Billboard 200, have yielded Montgomery's furthest commercial success.

Slaughterhouse is the self-titled debut studio album by hip hop supergroup, Slaughterhouse, consisting of members Crooked I, Joe Budden, Joell Ortiz and Royce da 5'9". The album was released on August 11, 2009 on E1 Music and sold 18,600 copies in its first week.