Question: who sings lead on eagles peaceful easy feeling
[{'answer': 'Glenn Frey', 'provenance': [{'wikipedia_id': '8663558', 'title': 'Peaceful Easy Feeling', 'start_paragraph_id': 1, 'start_character': 239, 'end_paragraph_id': 1, 'end_character': 249, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '8663558', 'title': 'Peaceful Easy Feeling', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 424, 'bleu_score': 0.9738505480425671, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 80903204104700994}, 'section': 'Section::::Abstract.'}]}]