Jem Aswad Executive Editor, Music For their headlining set opening the Rolling Loud California festival in Los Angeles on Thursday night, Kanye West and Ty Dolla $ign merely stood onstage for an hour while pre-recorded music from their already released first album played over the loudspeakers. While the wording in the official announcement of the late-added performance was unspecific — “Vultures headlining new Thursday night,” the since-deleted post read — it’s safe to say that most people expected the duo, who have been working together under the name Vultures, to at least deliver vocals.