Patriotism always plays well in advertising. Try to imagine a commercial for pickup trucks or jeans without American iconography. American flags, eagles, (white) cowboys... and of course there's the soundtrack.
A number of songs have seen repeated use in patriotism-themed commercials, and not merely for products, but for politicians. However, one gets the feeling that the advertisers never actually listened to them.
Let's take a look at some examples
"Fortunate Son" - Creedence Clearwater Revival.
I first noticed this song being used in a jeans commercial not long after 9/11. I've heard it used again for GM cars and probably other products as well. It's a searing protest song, blasting the military, politicians, and wealthy.
Lyric used in commercial: "Some men are born to raise the flag, oo, the red white and blue..."
Very next lyric: "...but when the band plays 'Hail to the Chief', oh, they point the cannon right at you."
"American Woman" - the Guess Who
Used for women's clothing, makeup, and Austin Powers: The Spy who Shagged me, and at least one Sarah Palin fan video, it's a song by a Canadian band criticizing America for the war in Vietnam, urban poverty, and culture of excesss.
Lyric used in commercial: "American woo-mann!"
Very next lyric: "Get away from mee-eeee!.... I don't need your war machines, I don't need your ghetto scenes..."
"Born in the USA" - Bruce Springstein
Used for 4th of July celebrations, truck commercials, [Mitt Romney, as Frank pointed out] and... Jesus did anyone listen to the lyrics?
Lyric used in commercials: "Boooorn in the USA!"
Born down in a dead man town
The first kick I took was when I hit the ground
You end up like a dog that's been beat too much
Till you spend half your life just covering up
Born in the u.s.a., I was born in the u.s.a.
I was born in the u.s.a., born in the u.s.a.
Got in a little hometown jam
So they put a rifle in my hand
Sent me off to a foreign land
To go and kill the yellow man
Born in the U.S.A...
Come back home to the refinery
Hiring man said son if it was up to me
Went down to see my v.a. man
He said son, don't you understand
I had a brother at Khe Sahn
Fighting off the Viet Cong
They're still there, he's all gone
He had a woman he loved in Saigon
I got a picture of him in her arms now
Down in the shadow of the penitentiary
Out by the gas fires of the refinery
I'm ten years burning down the road
Nowhere to run aint got nowhere to go
Yeah... a real flag-waver there.