Maggie Gyllenhaal: Sundance Theatre Program Benefit Performer!

Maggie Gyllenhaal keeps it vintage while attending the 2013 Sundance Institute Theatre Program Benefit held at Stephen Weiss Studio on Monday (April 8) in New York City.

The 35-year-old actress is scheduled to perform at the benefit, which honors “an emerging playwright who embodies visionary storytelling and is developing a project that engages audiences in a fresh and exciting way.”

PHOTOS: Check out the latest pics of Maggie Gyllenhaal

The Theatre Program Benefit aims to raise funds to offset the non-profit Institute’s year-round programs for artists, including Labs, grants and the Sundance Film Festival.

10+ pictures inside of Maggie Gyllenhaal attending the Sundance Institute Theatre Program Benefit…