The trip, which brought the 15 members to Europe, marked a stark departure from the group’s usual Northeast regional trips. Earlier this month, the Chattertocks — one of the oldest collegiate treble a cappella groups in the country — traveled to London for their first international tour. This was “the first international tour that the Chattertocks talks have done,” said Sydney Chon ’26, who joined the Chattertocks in her sophomore spring. The Chattertocks were received particularly well by the Sacred Heart Language College — an all-girls school in London. While in London, the Chattertocks performed for the Brown Club of the United Kingdom, an experience that became more emotional for some members of the group in light of the violence on campus.