Dumbfoundus Highlights from LeeStock 2014 Dumbfoundus have been confirmed as the 2015 LeeStock Sunday headline act. We’re really pleased to have them back once again. Please view the video below to see them in action at last year’s music festival. January 22, 2015Promo Video2015 Line Up, Dumbfoundus, LeeStock 2015, LeeStock Video, LSK2015, Promo Video, Sunday Headliner, Video GalleryMatt Starling