In this paper, we describe fan calls as a practice of communicative relational work between YouTube stars and fans. Fan calls are conversations that are conducted in front of and for an internet audience and are thus integrated into a whole series of preceding, accompanying and subsequent media practices. With interaction analytical methods, we show that stars as well as fans align themselves with the audience. As extraordinary as the fancall conversations themselves may seem, and as much as their extraordinariness is performatively constructed by the interactants together, they are woven into ongoing digital interactions. Accordingly, our hypothesis is that fans and stars can only be characterised relationally: Fans are fans of their stars and stars are stars for their fans. The example of fan calls can be used to show how and with which media resources this relationship between fans and stars is expressed linguistically and communicatively.