Mad Clown and NS Yoonji performed Psy's "Father" on Mnet's "M Countdown" aired on May 8, in celebration of Parents' Day.

Both singers entered the stage wearing black outfits, performing the song in solemn calmness. Mad Clown wore a black suit with a black snapback, while NS Yoonji wore a see-through lace black dress. "Father" was rearranged in a more serene and heart-wrenching way; Mad Clown's rap and NS Yoonji's vocal added to the soul present in the song.

Internet users commented: "Their voices go so well together", "Their performance was so touching", "It's more than I expected!"

Meanwhile, 15&, Eddy Kim, NS Yoonji, Eric Nam, Hong Dae Kwang, Mad Clown, Lena Park, Sonnet Son, A-PINK, Akdong Musician, and EXO-K delighted audiences with their performances.