Singer Wanna One Lee Dae-hwi, Bae Jin Young and Kang Daniel attended the '2018 KBS Song Festival' held at KBS, Yeouido, Seoul on the afternoon of the 28th.
About Kang Daniel
Kang Daniel is a South Korean singer-songwriter, actor, and entrepreneur that rose to fame in early 2017 as the first-place winner of the second season of reality competition series Produce 101.
 Wikipedia