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    The Definitive Ranking Of Taylor Swift's Collaborations

    In honor of Taylor Swift's latest collaboration with Kendrick Lamar, let's look at all eight of her musical collaborations and rank them.

    8. "Both of Us" — B.O.B. feat Taylor Swift

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    Let's be real: Any collaboration with Taylor Swift is gonna slay. However, something has to be at the bottom, and this collaboration is the one. This was her first foray into the world of pop/rap collaborations (not including her hilarious skit song with T-Pain, "Thug Story"). This song was on B.O.B.'s album Strange Clouds, which came out in 2012, a few months before Taylor Swift's fourth album, RED.

    7. "Two is Better Than One" — Boys Like Girls, feat. Taylor Swift

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    This song is lush and romantic, featuring a very young Taylor Swift on vocals. It's only so low on the list because she has so many good features. This song was released in 2009, on the Boys Like Girls album Love Drunk.

    6. "The Last Time" — Taylor Swift feat. Gary Lightbody

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    Off her fourth album, RED, "The Last Time" is a desperate song of last chances. He promises this is the last time he'll break her heart; she swears this is the last time she'll forgive him. Pairing Gary (of the band Snow Patrol) and Taylor makes a lot of sense. They both utilize emotion in their songwriting.

    5. "Breathe" — Taylor Swift feat. Colbie Caillat

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    "Breathe" is a track off Fearless, Taylor's second album, and the song tells the story of a goodbye. Pairing Taylor and Colbie is musical genius; Colbie co-wrote the song with Taylor, and they harmonize perfectly.

    4. "Half of My Heart" — John Mayer, feat. Taylor Swift

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    While John and Taylor may have a romantic history, this song was written back when they were just colleagues. This song also came out between Taylor's second and third albuma, and was featured on John's album Battles Studies in 2009. John has discussed his desire for a Stevie Nicks/Tom Petty-esque collaboration, and he found his partner in Taylor Swift. While Taylor's contribution is somewhat minimal, the writing and emotion lands this song higher on the list.

    3. "Clean" — Taylor Swift feat. Imogen Heap

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    This song is not available on Youtube due to the fact that it's on her most recent album, 1989. However, posted above is Ingrid Michelson's cover from Billboard's Women in Music Awards late last year. Imogen Heap and Taylor collaborated on the production and vocals, and it is easily one of the most powerful songs off 1989. It describes the feeling of moving on, letting go, and finally feeling free in a world out to get you.

    2. "Bad Blood" — Taylor Swift feat. Kendrick Lamar

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    Off of Taylor's most recent album, 1989, this song is one of the best collaborations Taylor has ever done, simply because it pairs two great writers. Kendrick's two-verse addition to the song transforms the original into a hard hitting badass call to action. And the video is kick-ass as well.

    1. "Everything Has Changed" — Taylor Swift feat. Ed Sheeran

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    The #1 Taylor collaboration has to be "Everything Has Changed" with Ed Sheeran. Off of her fourth album, RED, the song talks about love, and how with one word your whole world can be turned upside down. Much has been made of Taylor and Ed's friendship, but let's not forget they're a great collaboration as well.