All you hear is rumbling bass guitars and saxaphone, but I recognized the song immediately. The song currently being used by Chevrolet in their Truck Month commercials is an old Morphine song. Details and commercial below

Song: Thursday (iTunes) | (Amazon)
Artist: Morphine
Album:  Cure for Pain (iTunes) | (Amazon)

The latest Chevrolet Malibu Hybrid commercial is using the Sea Wolf song “You’re a Wolf” (iTunes).

Artist: Sea Wolf
Song: “You’re a Wolf” (iTunes)| “You’re a Wolf” (Amazon MP3)

“Your a Wolf” Lyrics (iTunes)
I’m walking on the southern street, cut to the river ‘fore I run too low.
I’m walking on the southern street, cut to the river ‘fore I run too low.

Old gypsy woman spoke to me, lips stained red from a bottle of wine.
Old gypsy woman spoke to me, lips stained red from a bottle of wine.
“The one that you are looking for, you’re not gonna find her here.”
“The one that you are looking for, you’re not gonna find her here, here.”

I’m runnin’ on the northeast street, cut to the ocean ‘fore I run too low.
I’m runnin’ on the northeast street, cut to the ocean ‘fore I run too low,
Cut to the ocean ‘fore I run too low.
“The one that you are looking for, you’re not gonna find her here.”
“The one that you are looking for, you’re not gonna find her here, here.”

Old gypsy woman spoke to me, said, “You’re a wolf, boy, get out of this town.”
Old gypsy woman spoke to me, said, “You’re a wolf, boy, get out of this town.”