Who said "Believing in yourself is the first step to success"?

This quote is attributed to Spice Girls.

Believing in yourself is the first step to success - Spice Girls

"Believing in yourself is the first step to success"

Spice Girls

Pop Group British Born 1994 (age 32)

"Wannabe is about friendship and girl power above all else"

"We're not just a girl band, we're a girl power movement"

"Life is about having fun and enjoying every moment"

"Girl power means believing in yourself no matter what"