To promote their new documentary The Reflektor Tapes, Arcade Fire’s Win Butler, Régine Chassagne, and Tim Kingsbury appeared on CBC Music to play “Jam or Not a Jam?” The concept is pretty simple, as the three decide whether songs by The Weeknd, Mark Ronson, Justin Bieber, The B-52’s, Bryan Adams, and Ke-M Pa Sote are jams or not.

Win is positive about all the songs he hears, even declaring “Where Are U Now” to be “The best Justin Bieber song that Diplo’s ever produced,” with a wry smile on his face. Régine and Tim, however, are not as kind. Watch the video above.