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