For those who haven't watch the episode where Jiae and the other Woollim trainees on Running man

i'll give you a link where you can watch it 

it can be here:

RUNNING MAN EPISODE 98 "HUMANS VS ZOMBIES"

http://www.youtube.com/watch?v=rtFsbAkrGSM

or here:

http://www.kshownow.net/2012/06/running-man-episode-98-english-subs.html

ENJOY GUYS  ^o ^