Kate Upton may be killing the modeling game at the moment, what with her back-to-back Sports Illustrated Swimsuit Edition covers, but before Ms. Upton was doing the cat daddy, Bar Refaeli reigned supreme. As a matter of fact, she still does. When Go Daddy needed a gorgeous bombshell for its big Super Bowl commercial, it tapped the Israeli beauty to be the one who locked lips with "Walter" in the kiss seen around the world. If you needed any more proof that Bar is still at the top of her game, check out her Instagram page. In addition to chronicling her day-to-day activities, you get a look at some of her hottest pictures. In the interest of saving you time, we went ahead and picked the 25 sexiest. Enjoy.  

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