Question: Jason Staehler Hill is an American record producer, songwriter, film score composer, audio engineer, mixer and multi-instrumentalist, he has worked with such artists as which American singer, songwriter and multi-instrumentalist, best known as the lead singer, keyboardist and occasional bass guitarist of the Las Vegas-based rock band The Killers?
{'answer': 'Brandon Richard Flowers', 'supporting_facts': [['Jason Hill (singer)', 1], ['Brandon Flowers', 0]]}