Brooke Shields, 51, looks youthful while enjoying some retail therapy in Los Angeles

She certainly didn't have the case of the Monday blues.

Brooke Shields couldn't stop smiling while out and about on the California sunny day, as she was seen leaving the Los Angeles hot spot, Alfred Coffee. 

The 51-year-old timeless actress looked comfortable in a black V-neck cardigan and distressed boyfriend jeans, carrying what appeared to be a shopping bag in her hand.

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Nothing but smiles! Brooke Shields was in a pleasant mood on Monday as she stepped out in Los Angeles to run some errands

The Blue Lagoon star layered her sweater with a white tee underneath, burgundy-colored flats and minimal accessories except for earrings and multiple bangles on her wrist.

Brooke paired her pleasant face with black Ray-Ban Aviator sunglasses, while an extra pair hung off her collar, as her tousled wavy brunette locks were down, past her shoulders.

A touch of light make-up was applied to her face. 

The mother-of-two held one camel-colored bag in her hand and carried a tote on her other shoulder as she walked along cheerfully. 

What's so funny? The 51-year-old actress/model looked causal yet stylish in a black cardigan and light distressed boyfriend jeans

High spirits! Wearing only a touch of make-up, the former Calvin Klein model covered up in dark Ray-Ban Aviator sunglasses as her brunette locks were down, past her shoulders

According to Vanity Fair, it's been 50 years since the former child model landed her first job at only 11 months old.

Looking back at her career, Brooke spoke to the outlet about the first photo that helped launch her career.

After photographing for her friend at age 13 in black leotards and red lipstick, the photo ended up in one of the biggest monthly magazines in 1978, Life magazine.

Telling Vanity Fair: 'This image elevated us into a different category: we were no longer just catalog models but had transitioned into a more credible and artistic realm. It was also controversial at the time for girls to project womanly poses, but that’s what girls did when dressing up. And, looking back, this is the photo that sort of put us on the map.'

Still got it! She paired her outfit with burgundy flats while carrying two brown bags

Stylish: The mother-of-two kept her accessories simple with only studded earrings, multiple bangles and a gold watch

And ever since, Brooke has made waves in the acting and modeling industry, being the official face of Calvin Klein in the 1980s.

Meanwhile, the brunette beauty - who was married Chris Henchy in 2001 - raises two daughters: Rowan, 13, and 10-year-old Grier. 

She will appear in the upcoming December 6th episode of The Middle on ABC. 

She will also play Sandy Winters in the 2017 release of Daisy Winters, due out next September. 

Reunited: The Pretty Baby star recently posed with Calvin Klein in October - the icon who helped her launch her career in the 1980s

Looking back: Brooke recently spoke with Vanity Fair celebrating 50 years since she got her first modeling job with Ivory Soap, at only 11 months old; here is a 1978 picture of 13-year-old Brooke when her career launched

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