LOS ANGELES (AP) — When you talk to an American about football — you know they will be talking about the NFL brand. But to a Brit like Ellie Goulding, football is what we Americans call soccer. Goulding is going to be performing at the NFL’s season kickoff concert tonight. And she says she’s been using the run-up to the event to learn more about football, American style. Goulding joins Train in the performance in San Francisco before tonight’s first game of the season.