Justin Bieber finally picked a side in the Taylor Swift/Kanye West feud

The celebrity feud of the decade continues to unfold before our eyes between Taylor Swift and Kanye West.

Kim Kardashian leaked video of a controversial conversation between the two musicians in a discussion about Kanye's song "Famous." Kanye contends that he received Swift's approval for the line "I made that bitch famous," while Swift has maintained she gave no such thing.

Now Justin Bieber has finally come forward to let us know what side of history he is on. With a single Instagram post, it seems he's staked a flag square in Team Kanye territory.

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SEE ALSO: Why Taylor Swift can't shake off Kim Kardashian and Kanye West

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The Biebs shared a screenshot of what looks like a Facetime conversation with Yeezy and friends. All seems normal and fine, until you read the caption: "Taylor swift what up," he wrote.

Not many other celebrities have spoken up about where they land, though Selena Gomez (who was in a relationship with Bieber) did post of a series of contentious tweets after the incident in support of Swift.

Like most things Bieber touches, his comment has gone viral. The hashtag #TaylorSwiftWhatUp is trending and people are so ready for the drama.

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Taylor, looks like it's your move next?