Record Store Day has been known to be a time when unlikely collaborations are formed for rare releases. Hell, music in general has produced oddball pairings (Metallica and Lou Reed's Lulu, anyone?). One partnership that has me very intrigued is that of southern metal rockers Mastodon and Canadian singer/songwriter Feist.

Speaking to MTV News Canada (via Alternative Press), bassist Troy Sanders said that plans are in the works for the two opposite acts to each cover one of their songs.

"The idea is for Mastodon to cover a Feist song and throw some hair and dirt on it," reveals Sanders. "They're (Feist's camp) going to take a Mastodon song and pretty it up a little bit."

However, time is of the essence for this to work. Busy touring schedules and appearances limit the opportunity to record the covers.

"We only have a short window to make that happen, which is the month of December," explains Sanders. "But we're going to do everything we can to work with Feist and have a split 7" for independent record stores"

Watch the brief clip below. Record Store Day celebrates and promotes local record stores with exclusive releases for music fans to purchase. Next year's date falls on April 21, 2012.

Both Mastodon and Feist recently released new albums this year. Mastodon dropped The Hunter September 27 and Feist's Metals was made available a week later on October 4.

I'm excited to discover which songs the two artists will choose. Can you imagine Mastodon blaring out a hardcore cover of "1234"? What about Feist giving "Curl of the Burl" a sexy makeover with her sultry voice?