LOS ANGELES (AP) ? The producer of Sunday's Grammy Awards says John Legend and Broadway star Cynthia Erivo will perform during the show's In Memoriam segment. Executive producer Ken Ehrlich says they will perform the Beach Boys' song "God Only Knows." As for who's included in the segment, Ehrlich says a committee at the recording academy circulates a list of more than 500 names, which must be whittled down to 50 for the three-minute package. But he won't reveal any specifics.