Leavers and Remainers face-off outside Downing Street, London, on the UK's final day in the European Union (January 31).<br /><br />On one side of the street a group of Brexiteers are heard chanting "you're not British anymore" while pointing at a group waving European Union flags.<br /><br />The Brexit supporters then begin to sing, "whose streets? Our streets" towards the Remainers. <br /><br />The UK is set to leave the European Union at 11 pm tonight.