The diffusion of English and the increasing mediatization of our globalized world have significant impacts on our perceptions of language and culture. Beginning with an overview of how the conceptualization of language is currently debated in sociolinguistics and related fields, this book highlights the need for a new perspective on language mobility. Through examining the use of English on German radio morning shows, the book explores the dynamics of language use in times of accelerated globalization and provides insights into how the media operate within the global flows of messages and linguistic resources that characterize our mediatized societies. In doing so, it demonstrates how combining the different perspectives of a sociolinguistics of mobility and contact linguistics allows for a thorough investigation of language practices in society, and advances the theoretical and practical approaches to the study of language mobility as a result.