Modena, May 23 - Beppe Grillo said his anti-establishment 5-Star Movement (M5S) will drive for Italy to have a referendum next year on whether Italy should continue to have the euro as its currency and stay in the European Union. "The euro should be rethought," said comedian-turned-politician Grillo, whose Internet-based movement captured around a quarter of the vote in February's general election. "We are considering doing a year of campaigning to then call a referendum to say yes or no to the euro and to say yes or no to Europe". In Italy it is possible to call for a referendum by collecting 500,000 signatures on a petition. Grillo said Italy should follow the lead of Britain, after Prime Minister David Cameron promised to hold a referendum on EU membership by 2017. "The British teach us democracy on the euro (which Britain does not have as its currency) and Europe," said Grillo. "No party can claim the right to decide for 60 million people".