Brenda Song is a 'Social' Butterfly

Brenda Song shows off a bit of her back tattoo as she steps out at the world premiere of her new movie, The Social Network, during the 2010 New York Film Festival held at NYC’s Alice Tully Hall, Lincoln Center on Friday night (September 24).

The 22-year-old actress plays Christy Ling in the upcoming drama, the girlfriend to Andrew Garfield‘s Eduardo Saverin.

The Social Network is the story about the founders of the social-networking website, Facebook and hits theaters on October 1st.

FYI: Brenda wore a one shoulder draped crepe column Marchesa dress with embroidered detail and holds a metallic napa leather pleated bow clutch with crystal embroidered knot.

20+ pics inside of Brenda Song…