How the Girl Power Generation Grew Up. Both a nostalgia-filled celebration of the most famous girl band in history and a smart and funny look at the ways in which the generation who idolised those five feisty characters have benefitted from their music, their actions and their zig-a-zig-ah. The Spice Girls gave a generation their first glimpse of the power of friendship, of anger, of staying true to yourself, of sheer bloody-mindedness. They gave us everything, all that joy can bring, and we took it to heart. The girl power generation have since stood up, grabbed a mega phone and kick started a new wave of women's liberation.