songs that came on at a club and changed the whole night... share yours

so theres a specific phenomenon where youre at a LS event, the bar is half empty, the mood is "warming up" and then ONE song comes on and the entire room shifts. weve had it happen at a club in birmingham when the dj dropped chris isaak wicked game at midnight and i swear three couples just walked off to the playrooms within minutes lol. weve had it with hooded fang, with sia chandelier of all things, with the weeknd... what song has done that for you at an actual event, the one that flipped the room from socialising to "alright lets see whats happening"...