Authenticity has long been a primary concern of sociolinguistic analyses. The emphasis on authentic Englishes significantly coincides with the development across a number of English-speaking communities of a Standard Language Ideology. As standardized Englishes are usually adopted as media languages – and frequently named after the media that use them, such as BBC English or American Broadcast Standard English – these media languages risk losing features that may signal authentic language or identities. Additionally, the pursuit of authenticity in media Englishes is amplified in the Englishes of pop culture, where authenticity must be manufactured as part of the process of creation. This chapter will explore the historical basis for the processes that manufacture authenticity in English varieties as a normal recurring process of standardization in a pluricentric model of world Englishes and advocate an acts of authenticity approach to understanding language in pop culture that has a bearing on language education.