We're down to the final four of our Hottest Bikini Body Bracket! The last round was especially close, but Jennifer Aniston, Brooklyn Decker, Jessica Alba, and Katy Perry made it through. Now it's time to take it down to two! For the month of July, we're narrowing 64 finalists down to number one in a competition of who has the hottest celebrity bikini body. All you have to do now is place your picks, and we'll be posting updates on the action. Here's the best part — one lucky voter will also win a brand-new iPhone 4! You will be entered for each round you complete, so the more rounds you play, the more chances you have to win. Remember, you must be logged in to be entered. See the official rules and start voting now!