What Hair has most to offer is the good-natured exuberance implicit in even the most ordinary rock music and embodied in the vitality of young performers. It has several amiable numbers—the ballad "Frank Mills," for instance; yet its songs are commonplace, musically and lyrically, compared to the work of the more sophisticated contemporary groups—the Rolling Stones in their most recent manifestation and the Beatles of Sergeant Pepper's Lonely Hearts Club Band. The plot, about which no one cares very much, is the old standard about the boy who loves the girl who loves the other boy who…. Although the show, despite its self-mockery, embraces the somewhat amorphous love ethic that is presumably rampant in hippiedom, it is a love that never quite takes in the two ugly ducklings who keep pressing their noses against the windows of their peer group.

Hair also has some satirical points...