Can someone please tell me the name and the artist of the song that is played on the Dodge commercial where the two young men decide to change drivers when they need gas. Some of the words are... I've been up, I've been down... I'me not asking for much. Really trying to figure this one out. Thank you.

ZZ Top - Tush

I been up, I been down.
Take my word, my way around.
I ain't askin' for much.
I said, lord, take me downtown,
I'm just lookin' for some tush.

I been bad, I been good,
Dallas, Texas, hollywood.
I ain't askin' for much.
I said, lord, take me downtown,
I'm just lookin' for some tush.

Take me back way back home,
Not by myself, not alone.
I ain't askin' for much.
I said, lord, take me downtown,
I'm just lookin' for some tush.