MONSTA X's Kihyun is the voice behind "Again Spring" for the 'Welcome' OST!

The music video features footage of Kihyun in the studio as well as scenes between cat-human Hong Jo (played by L) and his caretaker Kim Sol Ah (Shin Ye Eun). "Again Spring" is a ballad with rock and orchestral elements about trying to live life without someone you miss.

Listen to Kihyun's "Again Spring" above! Do you recognize it from 'Welcome'?