Are you ready for this?

The Elite Eight will soon become the Final Four in our Top TV Couple competition, and honestly this has never been tougher. Last year's winners, Caroline and Stefan from The Vampire Diaries, have already been eliminated, so this year it's truly anyone's game. Could last year's runner-ups, Once Upon a Time's Hook and Emma, take their revenge? Or will a new couple take the lead? It's all up to you!

Who do you choose? How do you choose? We just don't know how you guys do it, but we love to watch you try.

Voting is now open in round four, and will stay open until Sunday, April 24 at 5 p.m. PT. Vote your little hearts out until then, and feel free to supplement your voting with tweets to @eonlineTV with the hashtag #TopTVCouple.

Now get going, and remember: every vote counts!