Katy Perry has been through a lot in 2013, including a public breakup from fellow musician, John Mayer. Turns out before the duo broke up some musical chemistry and hit song making took place.

Featured on Mayer's latest album, Paradise Valley, is a single that features Perry. The song is called, "Who You Love," and combines two very unique styles. Perry is known for her pop, energetic and empowering female vocals. Mayer is known for his indie, guitar playing and swooning vocals. Even though these two musical styles don't seem like they would fit together, Mayer and Perry combine well musically.

Their vocals compliment the other an interesting way. Mayer has a harder tone in his delivery and the softer tone from Perry balances that harsh tone. It provides conflict within the song and audiences can feel the real life issues between the famous musicians.

Perry sounds mature, powerful and timeless with her vocal performance on this single. She is truly the standout after listening through the song.

With recent cover art released of both Mayer and Perry in a very intimate setting, this single has been brought into the mainstream music industry. Even though the single was originally released two months ago.

Even though Mayer and Perry did not work out as a real life couple, musically they are a perfect match.

Listen to "Who You Love" here: