Conversation so far:
What was Girl power?
The phrase girl power was a label for the particular facet of post classical neo-feminist empowerment embraced by the band.
How was the Spice Girls related to girl power?
The phrase was regularly uttered by all five members of the Spice Girls—although most closely associated with Halliwell—and was often delivered with a peace sign.
Did Spice Girls coin the term girl power?
The Girl power slogan's invention is credited to US punk band Bikini Kill, who published a zine called Girl Power in 1991.
How did Spice Girls embrace girl power?
The Girl power slogan featured on official Spice Girls merchandise and on some of the outfits the group members wore.

Question: Did they write any songs about girl power?
Self-contained rewrite: Did Spice Girls write any songs about girl power?