Justin Bieber has thrown some shade at Taylor Swift after holding a video call with Kanye West.

The '1989' star and the rapper are on bad terms at the moment after West's wife Kim Kardashian leaked clips of a phone call he had with Swift.

The pop star was heard thanking West for telling her about his track 'Famous' before it was released, although Swift later said she was never told she would be called a "b*tch" in the song.

Justin Bieber took to Instagram today (August 2) to upload a screenshot of himself talking to West on a video chat.

However, he added: "Taylor Swift what up."

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