YG Entertainment�founder�Yang Hyun Suk also attended the special event to cheer for his girls. �He even surprised fans by posting a short video clip via Instagram, illustrating the exciting atmosphere.

The footage revealed Black Pink opening with their debut song "BOOMBAYAH" as the audience exploded with loud cheers.

Budokan is a large arena holding more than 10,000 seats and is exclusively reserved for top artists to perform. �Not even a year into their debut, it was impressive that Black Pink was able to hold their�debut showcase at�this well-respected venue.

Following their showcase, Black Pink is set to release their official debut album in Japan on August 9.

SEE ALSO: Kim Go Eun shares behind-the-scenes photos from the '61st Baeksang Arts Awards'

#BLACKPINK #SHOWCASE #??? #20170720 #BLACKPINK_JAPAN_DEBUT #BLACKPINK_IN_YOUR_AREA #YG #with #AVEX #MATSUURA @masatomatsuura

A post shared by YANG HYUN SUK (@fromyg) on Jul 20, 2017 at 7:40am PDT

#BLACKPINK #SHOWCASE #??? #20170720 #BLACKPINK_JAPAN_DEBUT #BLACKPINK_IN_YOUR_AREA #YG

A post shared by YANG HYUN SUK (@fromyg) on Jul 20, 2017 at 3:40am PDT