Conversation so far:
Exactly what is meant by the Spice Girls Girl power?
The phrase "girl power" put a name to a social phenomenon, but the slogan was met with mixed reactions.
What mixed reactions did it have?
post classical neo-feminist empowerment embraced by the band: that a sensual, feminine appearance and equality between the sexes need not be mutually exclusive.
What else happened following these mixed reactions?
it was not until the emergence of the Spice Girls in 1996 with "Wannabe", that the concept of "girl power" exploded onto the common consciousness.
Were there a lot of controversy going on at this time?
some critics dismissed it as no more than a shallow marketing tactic, while others took issue with the emphasis on physical appearance.
Did the spice girls go on to be successful regarding their girl power?
The Spice Girls' debut single "Wannabe" has been hailed as an "iconic girl power anthem".
Did they have a huge following?
CANNOTANSWER.

Question: What are some important aspects?
Self-contained rewrite: What are some important aspects of the Spice Girls "girl power" phenomenon in addition to the criticism and support?