Mere moments before winning a Grammy Award for Album of the Year (“OMG,” indeed), Arcade Fire broke out some strobe lights, backpack-strapped BMX bikers, and Richard Reed Parry’s megaphone for a face-melting take on “Month of May” off said Album of the Year (!). Following Win Butler and Co.’s stunned speech, they played “Ready to Start” as well, so stay tuned, but meanwhile… here’s where their breakthrough moment began. Update: “Ready to Start” arrived: