Brad Keselowski is sending a message to his rivals through the song he chose for his driver introduction at Bristol Motor Speedway. Keselowski has asked to be introduced before Sunday’s race to “Won’t Back Down” by Tom Petty and The Heartbreakers. It will be Keselowski’s first Sprint Cup Series race since he was intentionally wrecked at Atlanta two weeks ago by Carl Edwards as payback for an earlier accident. Keselowski has vowed not to change the aggressive driver style that has angered so many veterans. Bristol started a practice last summer of allowing the drivers to pick their introductory music.