You are required to enter your name and a valid email address to ensure that you are notified should you be a prizewinner. You only have to vote once to be entered in the competition, but the more legitimate votes you make the better chance you have of winning. Vote for as many songs as many times as you like, but you can only validly vote for each song once per day. After you've made your vote, you will be returned to the main entrants' page.