Hwangssabu is known as the personal trainer for the YG Family. He is in charge of making sure the stars are always in the best shape for their fans.

He also really likes updating his Twitter with insider pictures of our favorite celebrities working out.

The latest image comes from Indonesia and shows Big Bang rapper, TOP on a treadmill in a small gym.

The caption of the June 15 picture reads, "Remember!!! Do not disturb! And Learn etiquette! In the gym."

Surrounded by women on various exercise equipment, TOP is seen jogging along on the treadmill.

What maybe is most noticeable for fans is his workout attire - completely covered up in long sleeves and plaid pajama pants, very different from the other people training in the gym around him.

Fans, however, find TOP's appearance endearing, especially as his is known for keeping himself totally covered even in hot weather or when performing on stage.

"TOP's outfit made me think that he was sleeping in bed, and suddenly Ssabu-nim came to his room and forced him to go to the gym... So he went down without changing outfits," read one comment.

"He never gives up his love for long sleeves," said another.

TOP is currently in Jakarta, Indonesia where he was the special guest for G-Dragon's concert on Saturday night.

The hotel where he and G-Dragon had their accommodation for their stay offered a package deal - a ticket to the concert, a hotel room, and free access to the gym.

There were reportedly several fans who tried to catch glimpses of the Big Bang members throughout the hotel, hence the reasoning behind Hwandssabu's Twitter post to be courteous and allow TOP to exercise in peace.