The song is "Round Up" by Sam Spence. I think there is another commercial that uses "March to the Trenches" by Sam Spence. There is one other Burger King commercial that has the song that is also used for the Mermaid Man & Barnacle Boy theme song on Spongebob Squarepants, and I don't know what it is called. If someone could help me with that one, that would be awesome. Thanks!