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Arcade Fire treated fans to plenty of new music this weekend.  As the musical guest on the 39th season premiere of NBC's "Saturday Night Live," the Canadian indie rockers played a pair of songs from their upcoming Reflektor album -- the previously released title track and a new song called "Afterlife." 

Several of the band members also took part in an "SNL" game show sketch called "New Cast Member or Arcade Fire," in which host Tina Fey attempted to identify some of the long-running show's new faces. 

After "Saturday Night Live," Arcade Fire kept the music going with a 30-minute concert special dubbed "Here Comes the Night Time."  But the show featured more than just music.  A number of celebrities stopped by for brief and often odd cameos, including Rain Wilson, Bill Hader, Zach Galifianakis, Michael Cera, James Franco, Aziz Ansari, Ben Stiller, and Bono. 

Check out their SNL performance of "Reflektor" below.