Katy Perry and John Mayer have recorded a track together that is set to be released on John's upcoming album. The song, titled "Who You Love", is clearly a testament of their on-again off-again relationship. Both Katy and John sing similar verses about the struggles of the relationship, but in the end the couple say if it's who you love, it's who you love. Katy even talks about her little laugh she lets out towards the end of the song and calls it her love giggle. Wow, look how cute these two are!