Oh My Girl�made their�guest appearance on the December 30 airing of 'Knowing Brothers' and performed "Secret Garden" for the first time!

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Continuing from last week's episode of the program, the girls were on the show once again. As a treat for the cast and the viewers alike, the girls performed their upcoming title track "Secret Garden" for the first time ever. The cast watched the girls in a fan-mode and cheered them on throughout the entire performance.�Check out the clip above.

Oh My Girl's 5th mini album�'Secret Garden'�will be released on January 9.