AUSTIN -- As you'd suspect, the Yeah Yeah Yeahs rolled out some new tunes at the South By Southwest music conference during their concert at Stubb's last night, what with their fresh album due April 16.

So they came out swatting, with the title track to the new effort, "Mosquito." Now, this song had previously made its way online from another live show this month. However, it's important to note how energetic its performance is here, how batty and aggro Karen O gets, like Siouxie and Electric 6 cramming their best ideas together.

Now imagine that going the whole show. Because it did.

The evidence is in the video below, which capturers the 55-minute show. To skip the pre-show banter from the NPR folks, fast-forward to about the 6-minute mark.

But also don't miss the performance of two brand new songs, debuts of "Subway" and "Under the Earth," which make me think that "Mosquito" may not be a slighter or leaner album, but proves the band has an expert touch on their more off-the-hinge moments, feeling more playful around their song structures. "Sacrilege" -- their current single -- features a gospel choir on tape, but that crescendo was tracked at the show, which is too bad. The choir could've been the audience, who seemed fairly well-acquainted with the track already.

Old songs like "Maps" and "Heads Will Roll" at the show were also a highlight, though I continue to marvel at Karen O's abilities to make every song an event, particularly with her costumes. They way she interacts on-the-edge with her fans is nothing compared to how she revels in her own clothes and accessories and detailed touches to her dance moves.

Yeah Yeah Yeahs shared the NPR stage with Nick Cave last night, which marked the first official night of the music portion to SXSW.