Standing at the intersection of fan culture, digital technology, and language learning, this book advocates for a transformative shift in language education in the AI age. Introducing the concept of fandom language learning, it illustrates how enthusiasm for specific interests motivates fans to learn languages, resulting in immersive and personalised learning experiences. Tracing the evolution of digital platforms shows how this has become possible thanks to their pivotal role in transforming language learning from a solitary, traditional endeavour into a vibrant, community-driven practice. The authors examine the psychological underpinnings of fandom language learning and how emotional engagement and cultural immersion can help to foster motivation. They also weigh the impact of social media and AI on language learning, emphasising the potential for these technologies to smooth the way for more interactive, engaging, and effective language education. Through a translanguaging approach, they also give new perspectives on the ways in which digital platforms enable learners to transcend linguistic boundaries and how fandom learners can harness creative expression and multilingual engagement. Building on these ideas, Fandom Language Learning also sets out practical guidance for educators on how to use fandom culture to motivate foreign language learning and increase students' Foreign Language Enjoyment (FLE), envisioning a future where language education is not only more aligned with learners' passions but also more responsive to the demands of a digital, multilingual world.