The couple is obvi adorable from the outside, but it turns out they're perfect for each other somewhere else, too!
No, not the bedroom! Well, yeah, hopefully there too, but we're talking about the recording studio! John recently released a duet with his Katy cat called, appropriately, Who You Love.
John says he had the basic idea for the song, his part of it anyway, for a long time. But it wasn't until he had the idea of collaborating with his lady love Katy that it became complete. He said: