As Calvin Harris revealed his forthcoming album Funk Wav Bounces Vol. 1 is due out on June 30th, one of Calvin Harris' biggest guest stars is none other than Katy Perry.

With the on-going feud between Katy Perry and Taylor Swift, many people believe that this was a subtle way of throwing shade at Calvin Harris' ex-girlfriend, Taylor Swift.

Even if it wasn't mean to directly throw shade at Taylor Swift, we can only imagine this came up once or twice while in the studio.

We're just glad to see that Calvin Harris and Taylor Swift are friends again.

Related: Deadmau5 Misses The Old Calvin Harris