Dolly Parton Brings Stephen Colbert to Tears on Late Show

Stephen Colbert is known for doling out the laughs, but the tears? Not so much. But on last night's episode (Oct. 20) of Late Show With Stephen Colbert, the host wiped away tears after hearing Dolly Parton do an impromptu acapella rendition of "Bury Me Beneath the Willow," a folk song that her…