Mariska Hargitay beams with joy after a RARE outing with

Mariska Hargitay beams with joy after a RARE outing with daughter Amaya, 12, at Taylor Swift’s Eras Tour concert film in Los Angeles

Mariska Hargitay proved she’s the ultimate cool mom when she brought her daughter Amaya to Taylor Swift’s The Eras Tour concert at The Grove on Wednesday night.

As the duo prepared to enjoy a preview screening of the pop superstar’s concert film, which runs two hours and 48 minutes, the Law & Order: Special Victims Unit star, 59, made a rare appearance with her middle child, 12 on the red carpet.

For the special occasion, the Golden Globe winner, who starred in Swift’s 2014 music video for her hit single “Bad Blood,” wore a long orange trench coat, a black V-neck top and light-wash blue jeans.

The mother of three accessorized her effortlessly cool ensemble with black slingbacks that matched her nail polish and a glamorous makeup look.

Cute: Mariska Hargitay proved she's the ultimate cool mom when she brought her daughter Amaya to Taylor Swift's The Eras Tour concert at The Grove on Wednesday night

Cute: Mariska Hargitay proved she’s the ultimate cool mom when she brought her daughter Amaya to Taylor Swift’s The Eras Tour concert at The Grove on Wednesday night

Swifties: As the couple prepared to enjoy a preview screening of the pop superstar's concert film, which runs two hours and 48 minutes, the Law & Order: Special Victims Unit star, 59, made a rare appearance with her middle child the red carpet.  12

Swifties: As the couple prepared to enjoy a preview screening of the pop superstar’s concert film, which runs two hours and 48 minutes, the Law & Order: Special Victims Unit star, 59, made a rare appearance with her middle child the red carpet. 12

Meanwhile, her little girl looked adorable in a light blue tulle minidress that paid homage to Swift’s upcoming 1989 re-recording and a cropped black leather jacket.

The budding fashionista styled her outfit with a pair of Céline combat boots, a delicate silver necklace and her hair in braids.

After posing for photos together, Hargitay and Amaya were seen holding hands before mingling with the other Swifties.

At one point, the daughter of bodybuilder and actor Mickey Hargitay and actress Jayne Mansfield was seen hugging and mingling with other attendees.

Her other two children, whom she shares with her husband’s other two children Peter Hermann, August 17, and Andrew, 11, did not appear to be present.

Guests were treated to items like popcorn buckets, soft drink cups and guitar picks with Swift’s face on them.

Meanwhile, Swifties paid homage to Taylor by dressing up as her idol, an insider at the event told .

“The Swifties did their best – many were dressed as them from iconic music videos and had the time of their lives.”

“The fans immediately went crazy when she arrived, screaming and calling her name,” the source added.

Stylish: For the special occasion, the Golden Globe winner, who starred in Swift's 2014 music video for her hit single

Stylish: For the special occasion, the Golden Globe winner, who starred in Swift’s 2014 music video for her hit single “Bad Blood,” wore a long orange trench coat, a black V-neck top and light-wash blue jeans

Cool mom: The mother of three accessorized her effortlessly cool outfit with black slingbacks that matched her nail polish and a glamorous makeup look

Cool mom: The mother of three accessorized her effortlessly cool outfit with black slingbacks that matched her nail polish and a glamorous makeup look

Joyful: At one point, the daughter of bodybuilder and actor Mickey Hargitay and actress Jayne Mansfield was seen hugging and mingling with other attendees

Joyful: At one point, the daughter of bodybuilder and actor Mickey Hargitay and actress Jayne Mansfield was seen hugging and mingling with other attendees

Sweet: The Cardigan hitmaker (pictured above) was reportedly pleased with the love her fans showed her at the event and was

Sweet: The Cardigan hitmaker (pictured above) was reportedly pleased with the love her fans showed her at the event and was “thrilled” to see so many of them

The Cardigan hitmaker appreciated all the love her fans showed her and was “thrilled” to see so many of them.

“Taylor was really in great spirits and was delighted that so many of her fans had turned out that evening. She looked like she was having the best time ever.’

The event featured numerous memorabilia of the singer, including a tote bag and large colorful mugs.

In addition to the memorabilia, fans were also treated to specialty drinks and an array of snacks at the venue.

And event staff wore badges with a picture of the singer in a sparkly silver bodysuit as she performed on stage.