A sprawling, genre-defying double-disc concept album—would you expect anything less from one of hip-hop’s all-time most creative duos? Big Boi’s Speakerboxxx side is an explosive update of Dungeon Family funk: “GhettoMusick” is a pummeling hail of breakbeats and organs, while “The Way You Move” recruits Sleepy Brown for a dapper stepping anthem. André 3000’s The Love Below is as eccentric as it is elegant, with mellow, reverb-drenched love song “Prototype” alongside the ecstatic electro-funk of “Hey Ya!”, a pop anthem for the ages.