2011 will not only be remember as the year that many Australian festivals died, but also as a year of bizarre collaborations. Jack White and the Insane Clown Posse probably top the list, but even their effort couldn’t bear fruit as sour as Lou Reed and Metallica’s album Lulu.

Yes, 2011 was full of bizarre collaborations, but it looks like 2012 could very well be just as weird. About a month ago, songstress Feist and metal band Mastodon both appeared on the same episode of TV show Later…with Jools Holland. The chance meeting was apparently the beginning of a collaboration that has now led them to plans to release a split single on vinyl for Record Store Day.

Talking to HitFix about the encounter, Feist said “Brent [Hinds] and I were nodding at each other, and he’s like, ‘Nice riff,’ and I’m like ‘Nice tone.’ So backstage I’m thinking about letting these two worlds collide, how they should collide, so I’m like ‘How about ‘Metals’ meeting metal?’”

After pitching the prospects of a split record, Feist said “Brent was like, ‘Well, I do like that “Bad in Each Other” song, I could see that.’ Maybe now I will look into learning to cover ‘Oblivion’… or anything off [‘The Hunter’]. That album’s amazing.”

Now Mastodon have revealed in an interview with MTV that the project will be going ahead and that the two acts plan to cover each others songs for a split single. It was also confirmed that the single will be released for Record Store Day 2012.

Watch Mastodon’s Troy Sanders discuss the bizarre collaboration below. Also, check out our slideshow of the weirdest collaborations in music.