The group released two studio albums, the latter of which through Eminem's Shady Records, a decision initiated by Montgomery. He also formed the hip hop supergroup Slaughterhouse with Joe Budden, Joell Ortiz and Kxng Crooked in 2008. He subsequently released eight follow-up studio albums to critical acclaim his latest, The Allegory (2020), earned Montgomery his first Grammy Award nomination for Best Rap Album in 2021. Montgomery first embarked on a solo career with his debut studio album, Rock City in 2002 it was originally set to be released a year earlier, but due to disputes with Columbia Records, it was released independently. The song and its parent EP, of which debuted atop the Billboard 200, remain Montgomery's most commercially successful recordings to date. Their 2011 single, ' Lighters' (featuring Bruno Mars) peaked at number four on the Billboard Hot 100, and preceded the release of their debut extended play (EP), Hell: The Sequel (2011). 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. Ryan Daniel Montgomery (born July 5, 1977), known professionally as Royce da 5'9' (or simply Royce 5'9'), is an American rapper, songwriter, and record producer.