Question: who sings with kenny loggins on whenever i call you friend
[{'answer': 'Stevie Nicks', 'provenance': [{'wikipedia_id': '40285648', 'title': 'Whenever I Call You "Friend"', 'start_paragraph_id': 2, 'start_character': 46, 'end_paragraph_id': 2, 'end_character': 58, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]