Saw Everything Everything play both times they played in 2015, first on the Other and then at William's Green the next day.
They hadn't released their new album yet (due that weekend I think) but played some new stuff and by the 2nd gig, everyone was shouting all the words to 'No Reptiles' back. At the end of the song, the applause went on for over 2 minutes and the band started crying. It was the best live moment I've ever experienced.
This video, at around 1:52 you can see the crowd start singing and the singers reaction. Shame it cuts most of the reaction at the end but you get a feel for it.