(CNN) Two years after she signed with the network amid much fanfare, Megyn Kelly and NBC have officially parted ways. The split was announced on Friday ending a drawn-out and acrimonious exit that was put in motion in the fall after Kelly defended Halloween costumes that incorporate blackface during a segment on her 9 a.m. talk show. Talks about ending "Megyn Kelly Today" started before the blackface remarks, due to underperforming ratings and growing tensions between Kelly and NBC executives.