BTS's "Butter" is the group's biggest song to date as it topped Billboard's HOT 100 for the seventh consecutive week.

The boy group has also released the CD version of "Butter," which sold a total of 1,975,364 copies during the first week of sales. Each time the boy group releases new material, they have made headlines as they have become the center of global attention.

However, some netizens were a bit disappointed as they discovered "Butter" sounds very similar to a Nintendo Entertainment System (NES) game that was released in the 90s. The game 'Monster in My Pocket' produced by Konami was released in 1992 and is based on a comic book series.

A song composed by Kozo Nakamura and Hiroshi Takeyashu and titled "Tower Catastrophe" from level 4 of 'Monster in My Pocket' has been gaining attention. This is because the melody of the song is vastly similar to BTS's "Butter."

You can listen to the song below:

As soon as the melody for this song plays, the listener would be able to automatically sing "Smooth like butter, like a criminal undercover..." in their head. After finding this NES game music, netizens have expressed shock at the similarities in the melodies.

Netizens commented, "F*** lol," "What is this, it's the same," "It's so same," "I can hear the beginning entrance part," "It does sound similar, but I think we need to wait for an official statement from the company," " "I thought it was Butter,"  and "Even an ordinary person can here the similarities."

Netizens are wondering if the foreign production team behind "Butter" purchased the sampling rights to 'Monster In My Pocket's "Tower Catastrophe" and are awaiting a response from Hybe.