Lily Moayeri Three days ahead of their prime-slot appearance at Coachella, Blur put on a packed preview show at the Fox Theater in Pomona, Calif., a half-hour east of Los Angeles. These Coachella warm-up shows serve serval purposes: They help the artist work out the kinks in their setlist — Blur toured extensively last year, including a career-spanning show at London’s 90,000-capacity Wembley Stadium, but most recently performed in South America in November — and they provide fans with a rare chance to see artists perform at smalle-than-usual venues.