"I spoke to Whitney the day that she passed," Warwick, 71, toldGMA
's Robin Roberts on Thursday. "I spoke to her that morning. She said, 'You're here, aren't you? You're coming to the party, aren't you?’ I said, 'Yeah, I'm going to be there' and she said, 'Thank you, I want you to be here. You've got to be here for me.'"