Though relatively small in numbers, Monsters of Folk is a supergroup of sorts. Making up this talented quartet are Conor Oberst and Mike Mogis of Bright Eyes, Jim James of My Morning Jacket, and solo artist/the him in She and Him, M. Ward. Their protracted, captivating performance on the Austin Ventures stage Saturday proved that a bunch of frontmen can easily share the spotlight. Over the course of their lengthy set, the band, dressed in their Sunday best, cranked out tunes from their 2009 self-titled release. Just as exciting were surprise renditions of the individual member’s solo work, such as “Soul Singer in a Session Band,” a real treat for Bright Eyes fans. While some people complained that the band’s more mellow tunes were drowned out by competing stages, that was not our experience. From front and center, it was all folky riffs and soulful vocals.