Arcade Fire | Live on SNL

I haven't written about the new Arcade Fire album, The Suburbs, as of yet, so their appearance on SNL last night is a good excuse to gush about how much new album has grown on me. I always thought Win Butler's voice was great on previous albums, but when his wife, Régine Chassagne, would sing it left me perplexed, often sounding like a different band. However on The Suburbs, Régine Chassagne's voice melts into the rest of the songs and creating, in my opinion, they're most cohesive album to date. Is that really Scarlett Johanson or Sigourney Weaver?