Watch Taylor Swift Perform Explosive Live Cover With Beck, St. Vincent

Taylor Swift, Beck and St. Vincent: the ultimate one-night-only power-trio. The arena-packing pop star brought out the latter guests during her Tuesday show at L.A.'s Staple Center, performing an energetic cover of Beck's funky single "Dreams," Stereogum reports. In the fan-shot video above, Swift jumps around the stage and adds backing vocals,...