When Brooks & Dunn recorded "Only In America," they weren't trying to make a political statement, but politicians from both parties have used it to enhance their messages.

The Republicans brought the duo to Madison Square Garden to perform the song after Vice President Dick Cheney made an address at the party's national convention in 2004. Now this year, Democrat Barack Obama has employed it at some of his presidential campaign stops.

"I'm just glad that we can sing such a rallying song that it would inspire people to get motivated," Kix Brooks told The Sydney Morning Herald.

But "Only In America" is not the only song that's generated a response these days. They've also heard both good and bad comments on their current single "God Must Be Busy." They released it only after being pushed by people who thought the message was inspirational. But there is a minority of voices who have problems with the song.

"I saw a blurb in the newspaper... about some minister questioning the writer of the song for insinuating that God could be busy," Kix noted. "He said it was an improper thought — that God would take on a human quality. When you write a spiritual song, you're always going to get passionate feedback, but it's not always going to be positive. We don't mind so much: A good song is about producing a different thought process."

Brooks & Dunn return to the States this week after spending more than a week in Australia on their first tour Down Under.