updated 08/09/2012 AT 2:00 PM ET
•originally published 08/09/2012 AT 4:00 PM ET
The two were spotted enjoying an LA Philharmonic concert with 1-year-old son Aleph on Tuesday night.
“[Natalie] looked pretty chilled-out,” says one source. “She was wearing jeans and a T-shirt, her hair was down. … She looked more concerned about keeping [Aleph] quiet and not disturbing anyone, than anything.”