The pair sang a beautiful rendition of Sung Si Kyung’s “Hee Jae.” The same-age singers are known for their close friendship along with BTS’s Jin. Sandeul and Ken have frequently competed against each other on the show as well.
Check out their performance below!
Other guests for this episode included Super Junior’s Kyuhyun, Kim Jo Han, Han Dong Geun, Song Seung Yeon, Urban Zakapa’s Jo Hyun Ah, 2PM’s Jun.K, and Huh Gak.
“Duet Song Festival” airs every Friday at 9:30 p.m. KST.