Erin Fetherston may sell her stuff at Target, but for yesterday's fashion show, she chose something different: Shoes by Forever 21. Check out the crushed velvet flats, as spied backstage before yesterday's big catwalk: Look closely and you can see the "Twenty One" scrawled on the bottom of the sole. As for the show, the audience whispers went something like this: "Oooh, pretty." "Is that Karlie Kloss? Why is she walking so slowwww?" "When did Arden Wohl and Irina Lazareanu become best friends?" "Did Leven Rambin just run backstage and change her dress - then get re-photographed by the paparazzi?!" "OMG, Rachel Zoe is so... small." "Oooh, really, really pretty."