It was recently revealed that the "Roar" singer would be featured on her beau's upcoming sixth studio album, Paradise Valley (in stores Aug. 20), and now their creation has hit the Internet.
"Who You Love" is a sweet melody that tells the story of opening your heart up and allowing yourself to fully love the person in your life—or specifically to "love who you love, who you love" (don't worry, Mayer repeats this a million times in case you forget the point...or the track title).
Near the end of the song, listeners will also hear Katy let out a cute giggle, which she reportedly addressed on The Morning Mash Up on SiriusXM.
"I think that's just a love giggle," she said. "It's like the ones that Mariah Carey had in 1990 and stuff like that. Yeah, I think I was going for that, I think I was just so happy…I love that song, you guys will hear it soon, all you listeners."
Mayer has not been one to shy from gushing about his love for Perry, saying she "is more incredible than I ever thought" and reflected how she took the time "to get to know me and love me," along with supporting him after he underwent surgery to remove a granuloma from his vocal cords.