OOTD: Dressing up a T-shirt

Let me start by saying that I've had this shirt for years. Its actually a little too big now that I lost weight but I still love the way the gold letters shine against the black background. I wanted to wear something casual enough because I drive the company vehicle for my job & when doing fieldwork, I don't exactly need the fanciest clothing.
I decided to pair the tee with a cardigan, this way I could strip the cardigan in the field, if need be. Then I figured that I could wear heels so that the "dressy" look is reinforced.
Cardigan.
Mossimo for Target. Thin enough to wear in hot Miami weather.
Tshirt.
5.7.9- does that place still exist? I can't find any of them in Miami anymore.
Belt.
Michael Kors. (by way of Saks) worn on the silver snakeskin side.
Jeans.
PacSun- totally on a 2 for 1 special. They look dirty which I love to pair with black clothing.
Shoes.
Steve Madden (by way of Macy's) these are in the runnings for my favorite heels.