Will Butler continued his late-night show circuit that began in March on Letterman with an appearance on Seth Meyers last night. He performed two more tracks from his debut solo album, Policy. For “Anna,” he wore a tux and did some spastic dance moves that matched the energetic pace of that song, and for online exclusive “Witness,” he and his band stripped down to sweaters that all had their names written on them. Watch both of them below.