KUALA LUMPUR, May 5 -- K-pop boy band BTS' label HYBE will be investigated by the Korea Creative Content Agency (Kocca) for alleged chart-rigging practices.

On Saturday, the Ministry of Culture, Sports and Tourism received petitions to investigate why the label paid blackmailers in 2017 after being accused online, reported Korea JoongAng Daily.

According to online posts, HYBE (then known as Big Hit Entertainment) was blackmailed by a person known as Lee and three accomplices for using 'expedient marketing strategies' to promote BTS' 2015 album.

Lee was sentenced to a year in jail and the other three blackmailers were released with a fine.

The court said that Lee had made a 'sajaegi marketing deal' with Big Hit Entertainment and used t...