Jennifer Lopez looked gorgeous in a green Gucci gown while recently filming a commercial for Fiat in Los Angeles.

If you recall, J. Lo first expressed her love for the designer's Fall 2011 collection (which oozes old Hollywood glamour with an edge) at the "Alexander McQueen: Savage Beauty" Costume Institute, to which she wore a red cutout gown with a halter neckline.

While both styles (and rich shades) proved exquisite on the actress, I love how the romantic, rosette-covered shawl (in addition to her red lip and accessories) really served to dramatize her gala look, which is going down as my fave.

Which style is the right way, and which one needs to hit the highway? You tell me in the comment section below.

Photos (left to right): MAP/Splash News; Kevin Mazur/WireImage