Justin Bieber takes a side in Taylor Swift's feud with Kanye West

Justin Bieber has decided to show his allegiance in Taylor Swift's feud with Kanye West just as it seemed to be settling down. Posting a black-and-white screen grab from a FaceTime conversation with Kanye on Instagram, the 22-year-old cheekily captioning the image: "Taylor Swift what up."

The photo shows Justin, who is currently on holiday in Hawaii, peeking out from the bottom of the screen, while Kanye can be seen smiling alongside two friends.

TAP TO VIEW GALLERYJustin Bieber chatting with Kanye West and Instagraming the interaction Justin Bieber shared this photo on Instagram with the caption: "Taylor Swift what up"

Justin's post has caused quite a stir on social media. Within three hours of being uploaded, it had racked up 568,000 likes, and #taylorswiftwhatup was trending on Twitter.

Kanye and Taylor's fall-out escalated last month when Kim Kardashian took to Snapchat to share footage of her husband talking to Taylor about his track Famous. The video shows Taylor allegedly approving the now-infamous lyrics in the song, in which Kanye raps: "I feel like me and Taylor still might have sex. Why? I made that b**** famous."

Kanye West and Taylor Swift Taylor and Kanye's feud escalated further last month

"Go with whatever line you think is better," Taylor can be heard saying. "It's obviously really tongue in cheek, either way… And I really appreciate you telling me about it, that's really nice."

Shortly after Kim released the footage, Taylor responded with a statement on Twitter, in which she claimed she was unaware of the whole lyric.

Taylor Swift The 26-year-old has denied that she knew the full Famous lyric

"Where is the video of Kanye telling me he was going to call me 'that b****' in his song? It doesn't exist because it never happened. You don't get to control someone's emotional response to being called 'that b****' in front of the entire world," the singer wrote.

But Kanye's wife Kim disagreed. During an interview with GQ weeks later, the reality TV star insisted Taylor was well-aware of the lyrics and that Kanye had called ahead to ensure she was comfortable with them.

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