Lee Jong Suk showed off his rock hard abs as the cover guy for 'CeCi's May issue and had fans all over the world gaping with surprise.

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This isn't the first time that Lee Jong Suk went shirtless but fans couldn't help but notice that his abs were even more chiseled than before. He looked like he has also been working out his arms and he balanced out his manly man image with his tender, sweet expressions throughout the two-hour photo shoot.

A rep commented, "The pictorial was filled with the sexy and manly charms of Lee Jong Suk who showed an innocent image up until now. All of the photoshoot staff fell for his surprisingly tender and tough charms which were beyond our expectations."

You can check out Lee Jong Suk's full 16-page pictorial in 'CeCi's May issue and also don't forget to tune in to the premiere of his drama 'Doctor Stranger' on May 5!