Quintessential funk stars Tower of Power demonstrate "What Is Hip" to the crowd at Iowa State University in this 1987 concert. The characteristically high-energy show features 20 tracks from their (then) 17-year history. The set includes the title tune, "Soul Vacation," "Down to the Nightclub," "Oakland Stroke," "This Time It's for Real," "Knock Yourself Out" and "Back on the Streets Again."