K-pop boy group BTS member Rap Monster uploaded a cute selfie of himself.

On July 16th, Rap Monster wrote "It's hot outside, fighting!" on BTS official Twitter.

In Korea, the word 'fighting' is used when you want to cheer for someone. 

Rap Monster's intention of his close-up selfie along with cute little message seem to encourage BTS fans to stay cold on a hot summer day.
 
Meanwhile, BTS 'Not Today' received over 2 million likes on YouTube.
World-famous BTS! Fighting! 

(Credit = 'BTS_twt' Twitter, 'ibighit' YouTube)