Today is the anniversary of Kanye West's "Christian Dior Denim Flow," a epic posse cut featuring Pusha T, Kid Cudi, John Legend, Lloyd Banks, and Ryan Leslie.⁣ ⁣ Complex's @N_C_B looks back on what led to that song. ⁣ ⁣ Is "Christian Dior Denim Flow" the greatest rap song that's not on streaming?