"Selling out", or "sold out" in the past tense, is a common expression for the compromising of a person's integrity, morality, authenticity, or principles by forgoing the long-term benefits of the collective or group in exchange for personal gain, such as money or power. In terms of music or art, selling out is associated with attempts to tailor material to a mainstream or commercial audience. For example, a musician who alters their material to encompass a wider audience, and in turn generates greater revenue, may be labeled by fans who pre-date the change as a "sellout". "Sellout" also refers to someone who gives up, or disregards someone or something for some other thing or person.

Authenticity is a concept of personality in the fields of psychology, existential psychotherapy, existentialist philosophy, and aesthetics. In existentialism, authenticity is the degree to which a person's actions are congruent with their values and desires, despite external pressures to social conformity. The conscious self comes to terms with the condition of Geworfenheit, of having been thrown into an absurd world not of their own making, thereby encountering external forces and influences different from and other than the Self. A person’s lack of authenticity is considered bad faith in dealing with other people and with one's self; thus, authenticity is in the instruction of the Oracle of Delphi: “Know thyself.” Concerning authenticity in art, the philosophers Jean Paul Sartre and Theodor Adorno held opposing views and opinions about jazz, a genre of American music; Sartre said that jazz is authentic and Adorno said that jazz is inauthentic. Many musical subcultures require artistic authenticity, lest the community consider an artist to be a poseur for lacking authenticity ; artistic authenticity is integral to many genres of music, including but not limited to genres of rock, club music, and hip-hop.