"Twenty Again" provided viewers with an awesome hip-hop dance sequence, at the conclusion of episode eight. Choi Ji Woo led the Bounce dance club through a routine that featured the old-school sentimentality of "How Gee" from Big Bang and BTS' hit, "Dope."

The scene served as a cathartic moment for viewers who have cheered on Choi Ji Woo as she portrays Ha No Ra, a housewife who attempts to return to the college where her 20-year-old son is a student and her soon-to-be ex-husband works as a professor.

An accidental pregnancy plunged No Ra into a dull life of servitude as a homemaker, even though she had dreams of becoming a top dancer.

In episode eight, she astounds the crowd of students and professors, when she takes the stage with the dance group. In this triumphant moment, No Ra is transported back to her youth, when she fantasized about a future as a professional performer.

This scene in "Twenty Again," demonstrates that compelling dance sequences are not only relegated to the musical genre. Here are five other great K-Drama music moments.

1. Kim Soo Hyun sings "Because You're My Woman" in "Producer."

Kim Soo Hyun performed "You're My Woman," during a karaoke scene in "Producer." His captivating vocals served as a reminder that his vocals went through a great transformation during his training for "Dream High."

2. J.Y. Park, Suzy, Kim Soo Hyun, Wooyoung, and Eunjung round up the gang for a mall flash mob in "Dream High."

"Dream High" is an all-time K-Drama favorite with its compelling dance and singing sequences. Even if some of the acting comes off as cheesy, the mall flash mob in the conclusion of "Dream High" serves as testimony to the quality of the production.

3. A Pink's Eunji wows the judges with "Hot Pepper" in "Trot Lovers"

Eunji delivered captivating vocal performances throughout the 2014 series, "Trot Lovers." However, she turned up the heat with her rendition of "Hot Pepper."

4. Jang Keun Suk wins Park Shin Hye with "What Should I Do" in "You're Beautiful."

Jang Keun Suk was very convincing as a rock star in "You're Beautiful," particularly when he stopped the show to win over Park Shin Hye, in the thrilling finale.