Things are about to get really messy in the divorce of Frances Bean Cobain and her husband of nearly two years Isaiah Silva.

TMZ reports that the 1959 Martin D-18E guitar the late Kurt Cobain famously played during Nirvana’s performance on MTV Unplugged is currently been fought over, with Silva claiming Frances Bean gave him the guitar as a wedding present.  This claim is being denied by both Frances Bean and mother Courtney Love, who says in the video below that the guitar is a “treasured heirloom” and “It’s not his to take.”

Frances Bean Cobain -- It's War ... Ex Wants Kurt's 'Unplugged' Guitar

We got Courtney Love at LAX Tuesday, who squarely sided with her daughter, essentially saying Isaiah's a scammer.

It’s not known whether a prenup was signed before vows were exchanged, but we’d like to think that any mediator/clerk/judge or anyone else in charge of settling this issue would have enough sense to not award Silva anything Cobain-related that wasn’t accrued during their marriage.

Now…any money Frances Bean made during their marriage could be up for grabs, that is if there wasn’t a prenup.

One thing’s for certain:  We haven’t heard the last of this split.

Nirvana - The Man Who Sold The World (MTV Unplugged)

Music video by Nirvana performing The Man Who Sold The World (Unplugged). (C) 1994 Geffen Records

Erica Banas is a rock/classic rock reporter who never leaves home without her iPod, because to her, there’s something very comforting about carrying around every piece of music she’s ever owned in her life.