Question: What singer replaced Diana Ross as the lead singer of The Supremes in January of 1970 and provided the lead vocals on the song "You Gotta Have Love in Your Heart" by the Supremes and the Four Tops?
{'answer': 'Jean Terrell', 'supporting_facts': [['You Gotta Have Love in Your Heart', 0], ['You Gotta Have Love in Your Heart', 3], ['Jean Terrell', 1]]}