His swoon-worthy body is the results of some seriously hard work. In an interview with the Chicago Tribune earlier this month, Derulo said, "I go pretty hard. I intake at least 3,200 calories a day. They're not fun calories, you know what I'm saying?"

High-protein, low carbohydrate? We know what you're saying J.D. (and we're not looking forward to it come the new year).

Despite all the hard work, we're sure the "Talk Dirty" singer's new girlfriend, Daphne Joy, appreciates his super hot bod.

In November, E! News confirmed that Derulo started dating 50 Cent's ex-girlfriend and baby mama. "They really like each other," a source told us. "It's still new but they are exclusive and really like being around each other. It's a very carefree easy going relationship."

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