Lovelyz Kei will be the second OST runner for JTBC's new Wednesday-Thursday drama "Run On."

JTBC's new Wednesday-Thursday drama "Run On" OST "Ride Or Die" with Lovelyz Kei and MONSTA X Jooheon will be released on various music sites at 6 p.m. on the 23rd.

"Ride Or Die" is a rap ballad song with Kei, the main vocalist of the popular girl group Lovelyz, who played a big role in Mnet's "Queendom," and Jooheon, the owner of solid rap skills, with impressive guitar sounds and colorful orchestras.

Kei's emotional voice and Jooheon's heavy low-pitched rap added to the mournful lyrics and melody of "I will always wait for you in the same place," maximizing the chemistry between the two.