Julia Roberts flashed her famous mega-watt grin in a new room-with-a-view-style spread shot by photographer Tom Munro.

'It sort of becomes this thing: "Let's see that smile!"' the Oscar winner - who turns 48 next month - told Allure.

'I can smile or I can not smile, but I can't perform. I am a genuinely and deeply happy person, which, as life goes on, you realize what great fortune that is, to feel like you just have the natural chemistry of joy.'

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Rocking Michael Kors: Julia Roberts flashed her famous mega-watt grin in a new room-with-a-view-style spread shot by photographer Tom Munro

She was most recently the face of Givenchy, but Julia Roberts is dipping her toes in the big fashion pool as she tries her hand at rocking Michael Kors, Gucci and other brands for her debut in Allure magazine.

For the sun-filled cover shoot, the Normal Heart actress donned designer duds from Michael Kors, Victoria Beckham, and Gucci.

Julia had her flaxen locks coiffed by hairstylist Serge Normant, and she had her minimal make-up applied by Genevieve Herr.

'[Jennifer Aniston is] so hot. I'm glad I don't have any scenes with her in Mother's Day,' Roberts said of their upcoming comedy.  

The Oscar winner - who turns 48 next month - told Allure: 'It sort of becomes this thing: "Let's see that smile!" I am a genuinely and deeply happy person, which, as life goes on, you realize what great fortune that is'

Showing a little leg in her silk georgette dress: For the sun-filled cover shoot, the Normal Heart actress donned designer duds from Michael Kors, Victoria Beckham, and Gucci

Cover girl: Julia had her flaxen locks coiffed by hairstylist Serge Normant, and she had her minimal make-up applied by Genevieve Herr

'She's too gorgeous. Look at us [at the SAG Awards] holding hands like little lovebirds. She's a lovely girl.'

The Georgia-born belle joined the 46-year-old newlywed as well as Kate Hudson and Jason Sudeikis on the Atlanta set last month.

Mother's Day is Jules' fourth collaboration with Garry Marshall, who also directed in her in Pretty Woman, Runaway Bride, and Valentine's Day.  

'She's so hot! I'm glad I don't have any scenes with her': Roberts is relieved she doesn't share the screen with Jennifer Aniston in their upcoming comedy Mother's Day (pictured August 19)

Meet Sandy and Miranda: Julia said, 'She's too gorgeous. Look at us [at the SAG Awards] holding hands like little lovebirds. She's a lovely girl' (pictured January 25)

Back to her home state: The Georgia-born belle joined the 46-year-old newlywed (L) as well as Kate Hudson (R) and Jason Sudeikis on the Atlanta set last month

At the helm: Mother's Day is Jules' fourth collaboration with Garry Marshall (L), who also directed in her in Pretty Woman, Runaway Bride, and Valentine's Day (pictured)

The mother-of-three vaguely endorsed presidential candidate Hillary Clinton, calling the decision 'a tricky little topic.'

'Not that I think she would be "a president for women," but I think her point of view is critical in this time when we are 51 percent of the population,' Roberts carefully stated.

'And somehow the paradigm shift isn't really happening. I would love to see more of what she has to offer in service to this country.

'I think her point of view is critical': The mother-of-three vaguely endorsed presidential candidate Hillary Clinton, calling the decision 'a tricky little topic' (pictured Thursday)

Roberts carefully stated: '[Women] are 51 percent of the population, and somehow the paradigm shift isn't really happening. I would love to see more of what she has to offer in service to this country'

The August: Osage County star also weighed in on the rising fame of her 24-year-old niece, Emma Roberts.

'She's so lovely. We spend a lot of time together,' she revealed. 'Emma is a remarkable girl. Sometimes I sort of secretly worry about her, and then I see her and go, "What am I worried about? She's a solid human being."'

The American Horror Story starlet will next play Kappa Kappa Tau sorority president Chanel Oberlin in Ryan Murphy's Scream Queens, which premieres Tuesday on Fox. 

'We spend a lot of time together! Emma is a remarkable girl': The August: Osage County star also weighed in on the rising fame of her 24 -year-old niece, Emma Roberts (pictured 2010)

'Sometimes I sort of secretly worry about her': The AHS starlet will next play Kappa Kappa Tau sorority president Chanel Oberlin in Ryan Murphy's Scream Queens, which premieres Tuesday on Fox

This year, Julia celebrated her 13th anniversary with husband Danny Moder, with whom she has three children - twins Phineas & Hazel, 10, and son Henry, 8.

'So awesome. Well, don't get me started. Yeah, it's my person,' she said of her 45-year-old beau.

The three-time Golden Globe winner admitted she wouldn't have 'succeeded' on her upcoming film Secret in Their Eyes without Moder serving as cinematographer.

In the crime-thriller, Julia plays a DA investigator called Jess, who has to relive her daughter's rape and murder after new evidence is discovered 13 years later. 

'So awesome. Well, don't get me started': This year, Julia celebrated her 13th anniversary with husband Danny Moder, with whom she has three children - twins Phineas & Hazel, 10, and son Henry, 8 (pictured August 29)

Mother-daughter outing: On Friday, the casually-clad Mirror Mirror actress was spotted roaming Malibu with her barefoot daughter Hazel

'Yeah, it's my person': The three-time Golden Globe winner admitted she wouldn't have 'succeeded' on her upcoming film Secret in Their Eyes without Moder serving as cinematographer (pictured January 29)

'I don't know if I would have succeeded in some of the efforts that I made if he hadn't been in such close physical proximity to me,' said Roberts, whose mother Betty Lou passed away during the production.

'There's something about having the safest place in the world for you in the same room.'

Secret in Their Eyes was the couple's eighth collaboration following films like The Normal Heart, Mona Lisa Smile, and The Mexican (where they met in 2000).

It hits US theaters November 20 and UK theaters March 4, and it stars Nicole Kidman, Chiwetel Ejiofor, and Dean Norris.

Originally written for a man: In the crime-thriller, Julia plays a DA investigator called Jess, who has to relive her daughter's rape and murder after new evidence is discovered 13 years later

Roberts, whose mother Betty Lou passed away during the production, said: 'I don't know if I would have succeeded in some of the efforts that I made if [Danny] hadn't been in such close physical proximity to me'

'[Moder] the safest place in the world': Secret in Their Eyes was the couple's eighth collaboration following films like The Normal Heart, Mona Lisa Smile, and The Mexican (where they met in 2000) 

Cold case gets heat: It hits US theaters November 20 and UK theaters March 4, and it stars Nicole Kidman (M), Chiwetel Ejiofor (R), and Dean Norris