Hilary Duff bundles up in her gray jacket while filming Younger in New York City

She returned to filming the sixth season of her critically acclaimed series last month.

Hilary Duff was spotted Monday in New York City as she got ready to shoot scenes for her Paramount Network series Younger.

The 31-year-old blonde beauty covered up for the chilly weather in a thick gray jacket. 

Keeping warm: Hilary Duff, 31, was spotted Monday in New York City as she got ready to shoot scenes for her Paramount Network series Younger

Keeping warm: Hilary Duff, 31, was spotted Monday in New York City as she got ready to shoot scenes for her Paramount Network series Younger

The 5ft2in singer was layered up, with a white shirt and black sweater under the puffy slate gray coat.

Earlier in the day she had on a pair of tight black jeans with frayed hems and a pair of black leather boots with white beaded heels.

Later, she changed into her costume, which featured a short, stylish dress made of dark blue crushed velvet that showed off her fit legs, as well as a cute pair of white leather boots. 

Chilly day: The 5ft2in singer was layered up, with a white shirt and black sweater under the puffy slate gray coat

Chilly day: The 5ft2in singer was layered up, with a white shirt and black sweater under the puffy slate gray coat

Low-key look: Earlier in the day she had on a pair of tight black jeans with frayed hems and a pair of black leather boots with white beaded heels; pictured with Sutton Foster (R)

Low-key look: Earlier in the day she had on a pair of tight black jeans with frayed hems and a pair of black leather boots with white beaded heels; pictured with Sutton Foster (R)

Having a blast: Later, she changed into her costume, which featured a short, stylish dress made of dark blue crushed velvet that showed off her fit legs, as well as a cute pair of white leather boots

Having a blast: Later, she changed into her costume, which featured a short, stylish dress made of dark blue crushed velvet that showed off her fit legs, as well as a cute pair of white leather boots

After filming her scene, the Cheaper By The Dozen star went in search of more comfortable footwear, first switching back to her black boots, then changing to a comfy pair of Ugg boots.

Hilary chatted with her co-star Sutton, 43, as they crossed the street between takes. 

She's currently filming the upcoming sixth season of Younger, which will be moving from the TV Land network to the Paramount Network going forward.

The half-hour dramedy stars Broadway veteran Sutton Foster Liza Foster, a 40-year-old divorcée who's forced to start over after her ex-husband racks up massive debt and

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