NFL's pre-season is coming to an end and soon we'll kick off the start of the true football season. Getting us pumped for the moment is Carrie Underwood and Joan Jett. Carrie Underwood teased the new version of the Sunday Night Football theme featuring Joan Jett and we're loving it. Carrie shared the clip on Instagram and captioned it "Tune in September 8th!! Yes!! That's the first night of the football season. What team are you rooting for this year? CAROLINA PANTHERS lets make this a GREAT season!