V was really a fanboy and he didn't try to hide it, from being amazed to envious yet supportive (when they were jamming with other idols), thirsty lol such a FAN
LOL In the second BTS shot, you can tell Jimin is a total perv, and JK's eyes just get bigger and bigger as the act goes on. Baekhyun @3:58 looks like he's thinking, "I so want to tap that."