On the 2009 album Battle Studies, John Mayer delivers 'Who Says' as a reflective track that explores themes of self-doubt and the pressure to conform. The song features Mayer's signature acoustic guitar work and vocal delivery, characteristic of his mid-career period where he balanced pop sensibilities with introspective songwriting. Released during an era where Mayer was frequently collaborating with producers like Jack Antonoff, the recording showcases his ability to craft personal narratives that resonate with listeners seeking authenticity in mainstream music. The track stands as a testament to his continued evolution as a songwriter, addressing universal feelings of inadequacy without resorting to clichés. Its inclusion on Battle Studies highlights Mayer's commitment to exploring complex emotional landscapes through his discography.