"The group's evolution has also been a function of Townshend's personal growth: "Look, rock and roll is above all an expression of the frustrations of youth. Well, this is 1969, I'm an adult, I don't have the same frustrations anymore. My concerns now are mainly spiritual." Nevertheless, the Who remain the Who, and at the core of their music, however spiritualized, is rock-and-roll. They look all white, but their dad was black. They are no longer kids, but they have not forgotten."