Did Ciara popularize street dancing among Pop/R&B girls?
Back in the days, female R&B singers played it safe Ciara was making stank face and really going in with the booty popping, jerking, gyrating and even twerking. Especially in videos like Goodies (Crib walking/Matrix), 1,2 Step (2 Step dance), Oh (Ciara was jerking), That's Right (twerking), Get Up, Promise (Cry baby), Work (Twerking), Gimmie Dat (Wall Twerking) and Ride (popping ass cheeks).
Ciara may have done it first, but she certainly did not popularize it.
I think she contributed a lot to it. Especially with the fact that her music was crunk&B at the beginning of her career, so it was nothing no one had ever done before, because it was a new genre.