Rainbow's Jaekyung is busy as a model these days as she graced the cover of 'Men's Health' and also posed for the ever stylish 'Jill Stuart.'  She uploaded both pictures onto her Instagram to show off her radiant summer tan and fit body perfect for parading around the beach in a bikini.

She wrote on Instagram, "Aren't you all going to look at 'Men's Health'?  Even though I'm the cover model?  I'm going to quickly go look at the August issue of 'Men's Health.'"

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Her cover picture for 'Men's Health' is perfectly riveting as she poses with a muscular male model and gives the camera a seductive look.