Is "here" located in the front because the speaker wants to emphasize that she's HERE?
"Here I come" is a very common expression that means you are about to go somewhere. In this song, she is telling all of the people who are cruel to her to be careful (look out) because she is coming. She is emphasizing that she is going to show everyone that she is proud to be who she is and no one can take that away from her. "Here" is placed where it is because that is the structure of the expression. Thank you so much for your question!