Political participation may take multiple forms. Conventional forms such as voting in elections are obviously important because they influence who are elected for office. Yet, a single vote is unlikely to change election outcomes, and casting a ballot only provides a narrow signal about the preferences of voters. In contrast, direct use of political voice – when voters inform elected politicians about their concerns and preferences – is a stronger and richer signal. Use of voice may thus be a more motivating form of political participation. In this project we hypothesize that appealing to citizens to voice their opinions – and to provide them with easy access to do so – will have an impact on not only their use of voice, but also on voting. We test this in a field experiment where we randomly assign all young voters (18-30 years) in a local government election (n≈100,000) to either (1) an appeal to voice, (2) both an appeal and an opportunity to voice or (3) an untreated control group. We investigate citizens’ use of voice on an online site where respondents can make their voice heard to the new local council. We test the effect on voting using validated administrative records on all citizens in the city. Results will have important implications for the study of the relationship between vote and voice and may point to Voice as an alternative means to Get Out The Vote.