The 15 Weirdest Collaborations of 2012

If this year had any notable trends, it was a continual breaking down of traditional genres and boxes, allowing disparate-sounding artists to come together for some truly bizarre and unique collaborations. Who knew Morgan Freeman would end up on a B.o.B record? Or Ed Sheeran and Yelawolf would record an entire EP together? Here are Fuse's strangest collabos of the year.

On their 15th album Music From Another Dimension!, Boston vets Aerosmith enlisted John's son for backup vocals for their opening track.

The theatrical singer teamed up with Australian singer Sam Sparro and former Chic guitarist Nile Rodgers for his sophomore album Trespassing.

Jack Sparrow himself, who's jammed with everyone from Aerosmith to Marilyn Manson, provides guitars and drums on the title track to the singer-songwriter's latest album.

Madge brought in two other iconoclastic female artists to provide some heft for her MDNA album. The trio would perform the electrifying track at this year's Super Bowl.

When Limp Bizkit announced they signed to Lil Wayne's label, most people had to make sure the date wasn't April 1. While their only collaboration was never officially released, Bizkit member DJ Lethal leaked the track.

While Ke$ha got some unusual collaborations herself on her latest album Warrior, (Iggy Pop?!), rock's wild child appeared on the Lips' Flaming Lips and Heady Fwends alongside Biz Markie. 

On this year's American Music Awards, the most famous song of 2012 got a twist with the addition of Hammer, who provided the "Gangnam Style"/"2 Legit 2 Quit" mash-up you never knew you needed.

British singer-songwriter Ed Sheeran may appear non-threatening, but dude recorded an entire EP with cool-but-kinda-scary rapper Yelawolf, which included a song called "You Don't Know (For F-ck's Sake)."

Now THIS is how you open an album. For the intro to Strange Clouds, Bobby Ray Simmons got the greatest voiceover actor not named James Earl Jones to open the album.

Not only did the R&B singer and mouth-flapping singer-songwriter work together on Channel Orange's breakout track, the duo performed the song on Saturday Night Live (arcade included).

Country music and R&B don't mesh too often, so when we see the names Ne-Yo and Tim McGraw in the same sentence, we will always make sure you notice.

The Compton rapper wasn't able to include his collabo with Mother Monster on his official album Good Kid, m.A.A.d. City, but it's 2012. So if it was recorded, it will be released in one form or another.

T.I. confirmed it with us first, but T. Swift and B.o.B's team-up on "Both of Us" from the latter's Strange Clouds album doesn't make this any less, well, strange.

When Lana Del Rey needed a JFK for her Jackie O portrayal for the "National Anthem" video, she snagged the most presidential of today's artists: A$AP Rocky. A perfect choice, Ms. Del Rey.

Of all the unlikely collaborations for this year's Record Store Day, none was more anticipated or unexpected than gentle singer-songwriter Feist's collaboration with metal gods Mastodon. The idea: Mastodon would cover Feist's "A Commotion," while Feist handled Mastodon's "Black Tongue." It was weird. It was singular. It was exactly why we love bizarre collaborations.