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Odd Couples: Unexpected Musical Collaborations - The greatest collaborations are unexpected points for oddity, and odd couples are the norm in the collaboration world, challenging the way we receive music across genres and generations. Check out these unexpected collaborations. – Jon Reyes & BET Staff  (Photos from left: Christopher Polk/Getty Images, Kevin Winter/Getty Images for iHeartMedia) 

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Gwen Stefani and Fetty Wap - Though not a stranger to asking hip hop's best to participate on her albums (Dr. Dre, Eve, Swizz Beats, Pharrell), after 10 years of not releasing a solo project, Gwen asked one of rap's biggest stars to appear on her latest album. Fetty Wap loans his distinctive voice to "Asking for It" and even though the pairing is odd, it actually sounds good. (Photos from left: Charley Gallay/Getty Images for Baby2Baby, FayesVision/WENN)

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Chris Brown and Zayn Malik - This was a totally unexpected pairing, but once “Back to Sleep (Remix)” plays, the joining of Chris with former One Direction member Zayn totally makes sense.  (Photos from Left: Kevin Winter/Getty Images  for iHeartMedia, Kevin Mazur/AMA2013/WireImage)  

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Lauryn Hill and The Weeknd - L-Boogie was supposed to join the Canadian singer for his debut at the 2016 GRAMMY awards but we’ll never know what happened to Lauryn Hill’s missing presence. The pair managed to make it happen a couple of days later at the Tonight Show starring Jimmy Fallon for a duet version of the Weeknd’s single, “In The Night.” (Photo: Andrew Lipovsky/NBC/NBCU Photo Bank via Getty Images) 

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Justin Bieber and R. Kelly  - 2013’s Journals had teeny-bopper Justin Bieber playing around seriously with R&B, and there was no one better than R. Kelly for this pairing. (Photo: Instagram via R Kelly)

Photo By Photo: instagram/rke

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Bruno Mars and R. Kelly - Bruno Mars, the prince of sweetheart love, tapped R. "Ignition" Kelly for a "G-mix" to his "Gorilla."(Photos from left: Kevin Mazur/WireImage/ Getty Images, Barry Brecheisen/WireImage/Getty Images)

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R. Kelly and Lady Gaga - Pop royal Lady Gaga got a hold of the King of R&B for her "Do What U Want" off her third studio album, Artpop. (Photos from left: Jerod Harris/WireImage/Getty Images, Gary Gershoff/WireImage/Getty Images)

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LL Cool J and Brad Paisley - LL Cool J and country star Brad Paisley shockingly got together for "Accidental Racist." Less shocking was the firestorm of confusion caused by the concept of the song.(Photos from left: Jason Merritt/Getty Images, Rick Diamond/Getty Images)

Photo By Photos from left: Jason Merritt/Getty Images

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Snoop Lion and Miley Cyrus - Snoop made a bold move when he dropped his "Dogg" moniker for "Lion." Along with the name change came an album and a single with Miley Cyrus.(Photos from left: Gary Miller/FilmMagic/Getty Images, Gareth Cattermole/Getty Images for MTV)

Photo By Photos from left: Gary Miller/FilmMagic/Getty Images

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Katy Perry and Juicy J - After starting a small tiff with Chief Keef over her concern for humanity's sobriety, Katy Perry took a musical chill with a verse from Mr. Stay Trippy for her fourth album Prism.(Photo: Kevin Mazur/Getty Images for Clear Channel)

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Dolly Parton and Queen Latifah - Hollywood execs paired rap icon/actress Queen Latifah with country music icon/actress Dolly Parton as competing gospel choir singers in the 2012 movie Joyful Noise.(Photo: Eric Charbonneau/WireImage)

Photo By Photo: Eric Charbonneau/WireImage

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Jay Z and Coldplay - Why are rappers so obsessed with Coldplay? A perfect person to ask is Jay Z. Not only did he drop in on the remix to the alt-rock quartet's "Lost" in 2008, but he and frontman Chris Martin have an ongoing bromance, complete with wedding invites and games of touch football. True story.  (Photo: Danny Moloshok/REUTERS/UNITED STATES)

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Chance the Rapper and James Blake - Chance the Rapper met James Blake, a singer/producer from the UK, at SXSW and the friendship has so far yielded a smooth cut of a remix to "Life Round Here" off Blake's second album Overgrown.(Photo: Courtesy of ATLAS Records)