Recent Rolling Stone Band to Watch Smith Westerns stopped by the Onion A.V. Club's studio recently to take part in their A.V. Undercover series, in which bands cover a song from a list provided by the site's editors. The Chicago garage rockers took on Tom Petty's "American Girl," a song that fits in rather well with their own repertoire of sunny, straightforward tunes. Their rendition is a bit sloppy and off-the-cuff, but the band certainly bring their own style and charm to the well-known radio staple.