Complex sentence: Milian's collaboration with Ja Rule led to a record deal with Def Soul Records, prompted by his affiliation with Murder Inc. Records, an imprint that was distributed through Def Jam, the parent label of Def Soul Records.
Split into simpler sentences: Milian's collaboration with Ja Rule led to a record deal with Def Soul Records, prompted by his affiliation with Murder Inc. Records, an imprint of The. Inc Records that was distributed through Def Jam, the parent label of Def Soul Records.