'The Voice' Contestant -- Reportedly Records 'Love Letter' to Kim Jong Un ... But She Calls BS

Judith Hill -- who's signed to Sony's music label and was a contestant on "The Voice" -- reportedly recorded a new track giving praise to Kim Jong-un while roasting James Franco ... but her people say the story is bogus.

According to Page Six ... Hill originally wrote an ode to James Franco and reportedly submitted it to "The Interview" producers for the soundtrack. But when it didn't make the cut -- and the hacking scandal went down -- she changed the lyrics and the title to "A Love Letter to Kim Jong-un."

Hill was reportedly attempting to mediate peace between North Korea and the U.S. by making K.J.U. the object of her affection in the song. Some choice lyrics:

- "You got me transcending heaven, so don't be confused ... James Franco ain't got nothing on you."

- "I could wait here 127 hours ... it's true ... there's only Oscar and baby it goes to you."

Hill was reportedly signed to Sony last year ... and is best known for performing with Michael Jackson in the movie "This Is It." She placed in the top 8 on "The Voice."

A rep for Hill tells us they did NOT submit the track to "The Interview" producers ... it was requested of them by a Sony A&R rep. She also says the song is not putting James Franco down.

The rep also claims she was not attempting to mediate peace ... and never changed the lyrics or title. The rep says it was simply a parody version of her song.