"Apink" reveals the secret to the group's longevity: "We've been together for 14 years, but we still use honorific language with each other" = "Knowing Bros"
Yoon Bo-mi (Apink), who is in a relationship with Rado, confesses her feelings in a handwritten letter, "I'm worried that the PANDAs will be shocked"
"FTISLAND" Lee HONG-KI and "Fly to the Sky" Fany appear in "Song Stealer"... Stealing someone else's song
