Music Artists You Might Not Know Collaborated

This will be ranked on what has surprised you the most. If you know more collaborations that aren't that known, you may add them here.
The Top Ten
1 Michael Jackson and Eddie Murphy (Whatzupwitu)

I didn't even know Eddie Murphy was a singer. Until I saw this...

2 Lil Wayne and Weezer (Can't Stop Partying)
3 Bono and Frank Sinatra (I've Got You Under My Skin)
4 Freddie Mercury and Michael Jackson (There Must Be More to Life Than This)

Two of my favorite singers singing together. Hooray!

5 Paul McCartney and Johnny Cash (New Moon Over Jamaica)
6 Fall Out Boy and Elton John (Save Rock and Roll)
7 Kenny Rogers and Michael Jackson (Goin' Back To Alabama)
8 Maroon 5 and Rihanna (If I Never See Your Face Again)
9 Bruno Mars, CeeLo Green, and B.o.B. (The Other Side)
10 Katy Perry and John Mayer (Who You Love)

I know this already. They look so cute together!

The Contenders
11 Eminem and Kendrick Lamar ( Love Game)
12 Maroon 5 and Lady Antebellum (Out of Goodbyes)
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