Ice Cube takes center stage at Late Night With Jimmy Fallon to perform the west coast rap classic "It Was A Good Day" with The Roots. Ice Cube promotes peace during the performance and drops a few shouts to ?uestlove, Jimmy Fallon and The Isley Brothers; Cube's song samples their iconic 1977 slow-jam "Footsteps In The Dark." The entire audience gets in on the act, swaying to the chilled out track with their hands in the air. Check the performance below. Look out for Ice Cube's forthcoming LP Everythang's Corrupt, dropping early next year. He hits the road this summer with De La Soul, Public Enemy and L.L. Cool J.