Did she single-handedly? No.
Did she influence it? Yes.
Sure dance music has been around for years, so have bell bottoms, high waist pants and plaid prints.
Things go out of style and are sort of resurrected and brought back in a movement. Just like how Pop Rock used to be the thing in early 2000's, now it's trap

music that has went mainstream. I'm sure Pop Rock will resurface again and it will take a lot of different influence to do so