Roy Kim's song 'Bom Bom Bom' has overtaken Psy and Cho Yong Pil to become the number one song on this week's Billboard's Korea K-Pop 100 Chart, amidst recent charges that the song was plagiarized.

Psy, who is currently in the U.S. on a promotional tour, sinks to number four on the charts with "Gentleman" behind Cho Yong Pil's "Bounce" and Akdong Musician's "I Love You," a new addition to the K-Pop Billboard chart.

On Wednesday, a spokesman for Roy Kim responded to K-pop fans charging that he had plagiarized Kim Kwang Suk's "Where The Wind Blows" and A-ha's 1980s classic "Take On Me," as originally reported on the website Soomi.

"Saying that Roy Kim's 'Bom Bom Bom' is plagiarized is a ridiculous accusation," Roy Kim's spokesperson said. "We asked experts and after they analyzed it, they said that this is not a case of plagiarism."

"Roy Kim did reveal that Kim Kwang Suk is one of his favorite artists, but these plagiarism accusations do not make sense."

But many K-pop fans weren't buying it. Several even created a "RoJinYo" site shot for "We Demand The Truth From Roy Kim."

But Roy Kim's fans stuck up for the chart-topping artist on Soomi's comment board.

"Poor Roy!" wrote Thuyster on Thursday. "He was so excited to release his own song only to have it accused of plagiarism."

K-pop fan Therslyl breaks the whole thing down.

"The beginnings of Aha's and Roy's chorus have three notes that are the same," she wrote. "That is it as far as 'plagiarism' in the song goes. And Kwang Suk's song has the same style, but that's like saying all country songs are plagiarisms of each other."

Meanwhile, "K-Pop Star 2" reality show winners Akdong Musician have got to be enjoying watching their song "I Love You" crack Billboard's K-pop top five.

The brother-sister duo whose song is at number three, reportedly headed to Mongolia for a vacation on April 20, where their parents work as missionaries.

"Both my brother and I exhausted a lot of energy," Akdong Musician's Soo Hyun said last month on the radio show SBS Power FM Young Street. "We want to rest. And it's been over a year since we were home, so we want to go visit home...we're going to be riding horses and eating Mongolian food."

Do you feel Roy Kim's song was plagiarized? Decide for yourself. Check out the "Bom Bom Bom" video below and the two videos K-pop fans feel it is plagiarizing and let us know what you think in the comments section.

Roy Kim's "Bom Bom Bom"

Kim Kwang Suk’s “Where The Wind Blows”

A-ha'a "Take On Me"