The Cowsills' volume of 20th Century Masters — The Millennium Collection: The Best of the Cowsills contains nearly all of the group's biggest hits and best songs, including "The Rain, The Park, & Other Things," "Hair," and "Love American Style." Over the course of 12 songs, almost all of their hits are presented, along with Bill Cowsill's "When Everybody's Here," which means this will satisfy nearly all of their casual fans. Some diehards could use a longer collection, but the rest will find this to be a fine, entertaining collection.