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Photos of Bar Refaeli have long plastered the walls of frat boys' rooms worldwide, but who gives the 27-year-old supermodel butterflies? She reveals her celebrity crushes in an interview with Maxim magazine.

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"I think Ryan Gosling is really cute," says Refaeli, who also admits to being a "big fan" of Justin Bieber.

Refaeli, who is featured on the cover of Maxim's next issue, also seems to be a fan of Olympian Michael Phelps, judging by her Twitter feed.

Last week, she tweeted her congratulations to the swimmer for his record-breaking performance in London along with a photo taken of the two of them wearing swimwear.

Refaeli's Maxim issue hits stands August 14.