Leighton Meester was spotted on the set of Gossip Girl wearing two beautiful dresses yesterday in New York City.

The first was a Louis Vuitton Resort 2011 daytime dress.

Her floral print bustier dress with a black bow accent was paired with flip flops between takes.

With the same hairstyle and rosy pink lips, Leighton changed into a Jenny Packham silver embellished gown from the Spring 2011 collection.

I will look forward to seeing what type of scenarios ‘Blair Waldorf’ will be wearing both looks when the fifth season of ‘Gossip Girl’ airs in September.

If Leighton’s Jenny Packham gown looks very familiar, that’s because Emma Roberts wore to Elton John’s AIDS Foundation’s Oscar Viewing Party back in February.

Credit: Style.com, NYmag, AKM Images & Fame Pictures