Question: What rock band topped the charts with their cover of "La Bamba" in 1987 and had a band member with a guest appearance on Dolly Parton's "Treasures" in 1996
{'answer': 'Los Lobos', 'supporting_facts': [['Treasures (Dolly Parton album)', 2], ['Treasures (Dolly Parton album)', 6], ['Los Lobos', 0], ['Los Lobos', 2]]}