So slim! Melissa Joan Hart shows off svelte shape in her own designer T-shirt to AIDS fundraising event in LA

She celebrated her 40-pound weight loss in April.

And Melissa Joan Hart has clearly kept the weight off, if not shedding more, as she showed off her slim shape while wearing her own designer company's T-shirt on Sunday.

The 39-year-old actress was seen sporting a Patriotic-inspired King Of Harts T-shirt as the company hosted the 26th Annual Elizabeth Glaser Pediatric AIDS Foundation A Time For Heroes Family Festival at Smashbox Studios in Culver City, California.

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So slim! Melissa Joan Hart showed off her svelte shape as her company, King Of Harts, supported the 26th Annual Elizabeth Glaser Pediatric AIDS Foundation A Time For Heroes Family Festival at Smashbox Studios in Culver City, California on Sunday

So slim! Melissa Joan Hart showed off her svelte shape as her company, King Of Harts, supported the 26th Annual Elizabeth Glaser Pediatric AIDS Foundation A Time For Heroes Family Festival at Smashbox Studios in Culver City, California on Sunday

Wearing children's clothing? The star was seen wearing the same shirt as her son Mason, right  

Wearing children's clothing? The star was seen wearing the same shirt as her son Mason, right  

King Of Harts is a children's collection created by Melissa and her husband, Mark Wilkerson, 39.

The Melissa & Joey actress was clad in the King Of Harts Logo Crown Tee which she teamed with a pair of slim denim jeans.

The blonde beauty as also donning an army green jacket and tawny brown boots.

Promo: Melissa and her husband are behind the kids clothing line, King Of Harts 

Promo: Melissa and her husband are behind the kids clothing line, King Of Harts 

Outdoorsy: The star teamed her shirt with an army green jacket, skinny jeans, and brown boots 

Outdoorsy: The star teamed her shirt with an army green jacket, skinny jeans, and brown boots 

Family affair: Melissa attended with her husband Mark, left, and three sons, Mason, Braydon, and Tucker

Family affair: Melissa attended with her husband Mark, left, and three sons, Mason, Braydon, and Tucker

Wilderness: The close-knit clan posed in a wooden canoe in a grassy landscape

Wilderness: The close-knit clan posed in a wooden canoe in a grassy landscape

Her above-the-shoulder locks were styled in loose curls, as she was pampered with a full face of make-up.

It was apparent that the Drive Me Crazy star was indeed wearing a children's shirt as she coseid up to her son Mason, who was clad in the same blouse.

A picture was shared on the retail line's Instagram, captioned: 'Melissa & Mason showing off our Logo Crown Tees from KingofHarts.com at the @egpaf event! #styleking #kingofharts.'

United: Tori Spelling and her husband Dean McDermott arrived with their kids Finn, Liam, Hattie, Stella, and Dean's son Jack

United: Tori Spelling and her husband Dean McDermott arrived with their kids Finn, Liam, Hattie, Stella, and Dean's son Jack

Playtime: Eva Amurri Martino, right, was seen reading to a group of kids 

Playtime: Eva Amurri Martino, right, was seen reading to a group of kids 

Happy bunch: Actor Mark-Paul Gosselaara and wife Catriona McGinn cosied up with their children

Happy bunch: Actor Mark-Paul Gosselaara and wife Catriona McGinn cosied up with their children

Mommy-daughter moment: Alyson Hannigan appeared cheerful while carrying her daughter Keeva 

Mommy-daughter moment: Alyson Hannigan appeared cheerful while carrying her daughter Keeva 

'Me & my Mason showing off our @KingofHartsKids Logo Crown Tees at the @EGPAF event today! #giveback,' Melissa tweeted with the same picture.

Melissa had of course attended the event with her three sons, Mason, nine, Tucker, three, and Braydon, seven, and husband Mark.

The group posed in a wooden canoe for a priceless photo-op.

Knowledge is power: Eva Amurri Martino revelled in the chance to read to children

Knowledge is power: Eva Amurri Martino revelled in the chance to read to children

Not just for families! Aja Naomi King arrived by herself, appearing chic in a patterned romper

Not just for families! Aja Naomi King arrived by herself, appearing chic in a patterned romper

Tough guy: Robbie Amell appeared hip in a neutral ensemble as he attended the event 

Tough guy: Robbie Amell appeared hip in a neutral ensemble as he attended the event 

The event appeared to be wilderness-themed, with plenty of greenery, cabin-like structures, fences, and lines of clipped clothing.

'So excited for the @EGPAF today and our awesome @KingofHartsKids booth. #givingback #havingfun,' Melissa had tweeted earlier in the day.

All of net funds raised from Sunday's event went to support EGPAF's mission.

The Elizabeth Glaser Pediatric AIDS Foundation seeks to end pediatric HIV/AIDS through research, advocacy, and prevention and treatment programs.

Other stars spotted in attendance included Tori Spelling, Mark-Paul Gosselaar, and Alyson Hannigan.

Where's your boyfriend? Ariel Winter was seen with fellow actor Nolan Gould 

Where's your boyfriend? Ariel Winter was seen with fellow actor Nolan Gould 

Florals: Lydia Hearst, left, and Danica McKellar, right, stunned in flower-printed blue frocks
Florals: Lydia Hearst, left, and Danica McKellar, right, stunned in flower-printed blue frocks

Florals: Lydia Hearst, left, and Danica McKellar, right, stunned in flower-printed blue frocks

Promo: Jaime Pressly's son Dezi was clad in a King OF Harts shirt

Promo: Jaime Pressly's son Dezi was clad in a King OF Harts shirt

Both her girls! Alyson also brought her daughter Satyana along 

Both her girls! Alyson also brought her daughter Satyana along 

 

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