What makes Who You Love by Katy Perry notable?

'Who You Love' reached number 18 on the Billboard Hot 100 and was praised for its emotional depth. The song contributed to the ongoing conversation about love and relationships in popular music, particularly through its candid portrayal of vulnerability. Released on August 12, 2013, 'Who You Love' came during Katy Perry's commercial peak, following her successful album 'Prism.' This collaboration with John Mayer marked a shift in her musical style towards more introspective themes and showcased her versatility as an artist.