Live In Concert from NPR's All Songs Considered Folgen

Written on a laptop, Sleigh Bells' songs rely heavily on bombastic beats that are pushed as far into the red as they can go. Combined with Alexis Krauss' sultry vocals and Derek Miller's trashy guitar riffs, their blown-out beats leap out of the speakers. The electro-pop duo headlines at The Parish at NPR Music's SXSW daytime party.

The Florida band's self-described "anthemic, bombastic, life-affirming indie-pop" project seems to have arisen as spontaneously as its name, which came up when one of Surfer Blood's members shouted it out in a car at random. The group performs as part of NPR Music's South By Southwest daytime party at The Parish in Austin, Texas, on March 18, 2010.

Hailing from Huntsville, Ala., G-Side is a rap duo that rhymes about the experience of living in a midsize city in the American south. The group performs as part of NPR Music's South By Southwest daytime party at The Parish in Austin, Texas, on March 18, 2010.