Taking a relationship to the next level usually involves a pricey ring -- unless you're two A-list musicians.
Katy Perry and John Mayer cuddled up in the studio to record a new duet, "Who You Love," which debuted on Tuesday.
The song shows off Mayer's new country-sounding tone. And it's no surprise what the sappy song is about, loooove.
Mayer's upcoming album "Paradise Valley," set to release Aug. 20, will feature the track. In the meantime, listen below and let us know what you think.