The Island Def Jam Music Group (IDJMG) is an American recording music unit formed on December 31, 1998 (New Year's Eve) by Universal Music Group. It consisted of labels created under the operations of Island Records and Def Jam Recordings. On April 1, 2014, Universal Music Group publicly announced the disbandment of the Island Def Jam Music Group, leaving IDJMG and its affiliated subsidiaries compelled as separate sister labels.
In 2024, Universal Music Group restructured its East Coast labels, including Def Jam Recordings, Island Records, Mercury Records, and Republic Records, under a central operational hub named Republic Corps.
