Spacelands Monday-night shows in Los Angeles usually attract 50 music nerds with indie-rock guts hidden behind corduroy jackets. But last night the club was packed with a shiny West-Side-of-L.A. crowd dressed like extras from a road production of The Last Temptation of Christ. An unannounced band went on at 10 p.m. The lead singer mumbled, Hello, were Silversun Pickups, and the group started playing what sounded like a blend of ersatz Strokes and nineties Brit-supergroup Electronic. The lead si....

