"NoisefeSTL inaugurated in October 2004, and has occurred annually until its latest showcase in 2013.

Notable touring acts who have played at the Lemp over the years include Animal Collective, Mount Eerie, Wolf Eyes, Xiu Xiu, Deerhunter, Megafaun, This Town Needs Guns, Phosphorescent, Yacht, Ariel Pink, Man Man, The World is a Beautiful Place, An Albatross, Mirah, Hop Along, Piglet, Ian Svenonius, Nat Baldwin, Viking Moses, Neptune, Extra Life, Zs, The Flying Luttenbachers, Ahleuchatistas, Jon Mueller, Bull of Heaven, Caroliner, Yellow Swans, The Plot to Blow Up the Eiffel Tower, Modern Life is War, Against Me!, La Dispute, Tiny Moving Parts, Into It.Over It.