During the mid-2000s , alternative hip hop secured a place in the mainstream , due in part to the crossover success of artists such as OutKast , Kanye West , and Gnarls Barkley . Not only did OutKast 's '' Speakerboxxx/The Love Below '' receive high acclaim from music critics , manage to appeal to listeners of all ages , and span numerous musical genres – including rap , rock , R&B , punk , jazz , indie , country , pop , electronica and gospel – but it also spawned two number-one hit singles and has been certified diamond by selling 11 times platinum by the RIAA for shipping more than 11 million units , becoming one of the best selling hip-hop albums of all time as well as winning a Grammy Award for Album of the Year at the 46th Annual Grammy Awards being only the second rap album to do so . Industry observers view the sales race between Kanye West 's '' Graduation '' and 50 Cent 's '' Curtis '' as a turning point for hip hop
46th Annual Grammy Awards
46th Annual Grammy Awards
Hip hop music