Joony teases the trio's while watching their performance on the rooftop.  Suggesting they should try to be more like the famed street dancer, Chinu 
Hammerboy?
‫هامربوي؟
Hammerboy?
¿Hammerboy?
¿Hammerboy?
Hammerboy ?
Hammerboy?
Hammerboy?
Пацан-молот?