Do people change their cultural preferences in social interactions where social class is particularly salient? Although previous research has assumed, or been unable to test, whether preferences vary across interactions, we argue that the 'cultural politics of class' may provide a context in which individuals alter cultural preferences depending on the specifics of a particular social interaction. Using a lab-based split-ballot experiment in a research university in the East of England (n = 300), we examine changes in preferences toward music genres depending on whether respondents are assigned to one of three treatment conditions: 1) a vignette describing someone who is working class, 2) a vignette describing someone who is middle class or 3) no vignette. Those born in the UK alter the strength of their preferences toward highbrow music genres when social class is made more salient. When the salience of class is increased it also activates particular cultural stereotypes and these stereotypes also influence the strength of respondents' preferences toward highbrow music genres. This mechanism suggests that individuals use cultural stereotypes in social interaction to position themselves and others in the social hierarchy through cultural preferences.