Actress Kang Hye Jung transformed into a high school student and surprised everyone with her youthful looks on the set of MBC's Chuseok drama special 'The Bump in My Life'.

SEE ALSO: BABYMONSTER's 'SHEESH' MV hits 200 million views on YouTube

Kang Hye Jung looks so natural in a high school uniform that it's a shocker she's actually the mother of Haru�from 'Superman is Back'. She said in her interview with iMBC, "To be honest, I don't really like uniforms that much. I'm thankful that I can take off the stuffiness of the student uniform and wear comfortable adult clothes."

On the drama special, she added, "The script was a fast read. There was no part that I couldn't understand or I had to convince myself of as it's all something that could realistically happen around me."

'The Bump in My Life' airs on September 8 at 9:40PM KST!