The third year contestants of MBC's upcoming new female idol survival show 'My Teenage Girl' will be greeting viewers on 'Show! Music Core' for the first time this weekend.

Premiering later this year in November, MBC's 'My Teenage Girl' is a girl group survival competition featuring the theme of an after school club. Contestants are divided into four different grades based on age.

On this weekend's broadcast of MBC's 'Show! Music Core' airing on October 2, the third year contestants of 'My Teenage Girl' plan on performing their first group song, "Same Same Different". The third grade consists of 20 contestants total, and all 20 trainees will be taking working together to put on one of the biggest stages ever seen on 'Music Core'.

Meanwhile, a prequel series to 'My Teenage Girl' titled 'Before School Hesitation' is currently airing via Naver NOW. every Friday evenings at 7 PM KST.