A Great Big World is an American two-member musical group from New York[1] made up of singers and songwriters Ian Axel and Chad Vaccarino[2] and signed to Epic Records.[3] The group is best known for their singles "This Is the New Year", which was performed by the cast in an episode of Glee[3] and reached the Billboard Mainstream Top 40 chart in May 2013,[4] and their international hit "Say Something", particularly after recording it as a duet collaboration with Christina Aguilera.