Hyungsik�had already let fans know that he went over to�the USA's Rocky Mountains for a CF, and now we finally get some official photos from 'Black Yak'!

The photos are BTS pictures of the TV CF shoot. The concept of the photo shoot is 'Finding Rocky', and Hyungsik was in New Mexico for the shoot. The dog Puzzle�also was featured in some of the still cuts.

SEE ALSO: ZE:A's Hyungsik reveals picture of himself with dog Puzzle in the Rocky Mountains

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During the filming, Hyungsik made sure all the staff were doing okay, joking, "This is harder to film than 'Real Men'." The staff said, "We wanted to capture his soft, poetic side as he sincerely goes through the Rockies."