She’s never one to be left out of a fancy fete, and last night (June 19) Dianna Agron was spotted at the Summer Party on the High Line in New York City.

The “I Am Number Four” cutie donned a 1950s-inspired Tracy Reese dress as she posed for pictures alongside Kate Mara at the Meatpacking District-area park.

And it seems that although she’s had overwhelming success playing Quinn on “Glee,” Dianna isn’t sure she’ll be coming back for the next season.

She tweeted, “I don't know all that is to come, but I know what a day like this means. Four years of love, light & support. To the cast, crew & creators.’’