For the 12th straight year, Carrie Underwood will sing the opening theme song for Sunday Night Football on NBC. The country veteran has performed “Waiting All Day for Sunday Night” each year since 2013 when she received the torch from fellow country artist Faith Hill. “It’s a road show like no other!” SNF announced in a joint post with Underwood and the network. “Carrie Underwood stars in her 12th consecutive show open for Sunday Night Football beginning September 8 on NBC and Peacock.” What is the Sunday Night Football Theme Song?Since the 1980s several musical theme songs have been used to c…