Wunderkinder Madeon and Porter Robinson merge to create a two-headed, super-producing, electronic dance music beast on their co-headlining Shelter Live tour. Madeon and Robinson are both highly regarded in their own right, and their longtime, internet-sprung friendship is the stuff of studio-nerd legend. The experience is unique, as Madeon and Robinson perform together, reworking songs from both of their back catalogs to come up with new edits of crowd favorites. You can hear this on their recent collaboration, “Shelter,” a pretty electro-pop confection that’s like a burst of dance floor–aimed confetti. Also Sunday-Monday, Nov. 27-28, at the Shrine.