Ghostface Killah (photo: Ria Burman) Ghostface Killah performed at Yoshi's in Oakland Tuesday night supported by Free Murda. Big puffs of green smoke clouds floated by on stage and in crowd as the audience got down to the beats and Killah rhymes let loose. Raw energy ripped through the venue when Ghostface offered a head-to-head freestyle battle, picking randomly from the crowd.