Justin Bieber and Kanye West might be making music together. Days after the Changes artist swung by Sunday Service and belted out a gospel anthem, Bieber has been spotted outside Kanye's Calabasas studio — in a pair of Yeezy Wave Runners, no less.

Of course, we can't know for sure why Bieber was visiting Kanye — maybe Biebz was still in the neighborhood after Sunday's session— but the timing of his visit has certainly piqued our interest. Particularly as Kanye's Willo Perron-designed office does include a recording studio.

It wouldn't be the first time the pair have linked up for musical endeavors, either — Kanye remixed Bieber's My Worlds album track, "Runaway Love," which you can revisit below.

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