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Arcade Fire lit up Jimmy Fallon's new "Tonight Show" studio Thursday night.  The Canadian indie rockers hung a disco ball from the ceiling and took to an elongated runway stage to perform their latest single, "Afterlife." 

Frontman Win Butler took full advantage of the extra space, running around with a hand-held camera and even climbing into the audience.  Arcade Fire's visit continued a string of impressive musical guests for Fallon's first week of "The Tonight Show." 

U2 got things started on Monday, followed by Lady Gaga on Tuesday and Tim McGraw on Wednesday.  Justin Timberlake is set to close out the week as Friday's only scheduled guest. 

Check it out below!