John Mayer got Prancercise guru and national treasure Johanna Rohrback to perform her joyous exercise routine to his song "Paper Doll." Turns out Rohrback's gently galloping movement is perfectly suited to John Mayer love songs (Taylor Swift revenge songs?) and sun-dappled streets in the suburbs. Skip the scripted intro; the pleasure here is Johanna Rohrback, dancing softly to soft music. It's a sweet enough image that you may be able to forget the Mayer-ness for a minute.