Lukas Nelson & Promise of the Real jammed out at Bob Weir’s TRI Studios tonight for an intimate crowd and Yahoo! Music streamed it live! Moving original songs, classic rock covers, and killer guitar licks were plentiful during the almost three-hour set. Lukas’ kid brother Micah Nelson live painted during most of the show, and later joined the band for a few songs—can’t deny those musical Nelson genes! Check out photos from the rock show and information on the auction of Micah’s painting to benefit their father Willie Nelson’s annual charity concert series, Farm Aid. - By Tiffany Lee & Carla Thorpe, Yahoo!