Beautiful actress Yoo In Na made a surprise appearance on the latest episode of '1 Night 2 Days' where she made quite an impression with her beauty!

Cha Tae Hyun and Jung Joon Young paid her radio booth a surprise visit when she was doing a live broadcast, causing her to become flustered. "I didn't even put on BB cream," she said, trying to hide her face and stuttering her lines. "Am I going to be on TV?"

Even though she was completely makeup-free after several days of non-stop drama filming, that only made her beauty shine brighter, with her clear skin framed by a pair of lenses!

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