I WILL UPVOTE!!
Who speaks: "O Romeo, Romeo! Wherefore art thou Romeo?
Deny thy father and refuse thy name;
Or, if thou wilt not, be but sworn my love,
And I'll no longer be a Capulet."
This line is spoken on her balcony in reference to the fact that if Romeo's last name wasn't Montague, then they would be able to get married. She says that if he will stay a Montague, she will change her name to not be a Capulet. it is a very important line in the play, as it shows that Juliet truly loves Romeo and will sacrifice for them to be together.
