The Island Def Jam Music Group (IDJMG) was an American recording music unit, formed on New Year's Eve 1998 by Universal Music Group. It consists of labels created under the basic 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 as separate sister labels.