Simon Cowell cuts a casual figure in his trademark jeans while Heidi Klum styles out a quick shoe swap for the America's Got Talent finale performances

Simon Cowell cut a casual figure in his trademark jeans he posed on the red carpet on Tuesday night in Pasadena, California for the America's Got Talent finale at Hotel Dena.

The talent show judge, 64, led the pack of celebrity judges as he was also joined by Heidi Klum who attempted to style out a quick shoe change on the red carpet. 

Swapping from her classy nude pink heels to white trainers, the model, 51, was helped by Howie Mandel who unwrapped the shoes from the box. 

Meanwhile Simon kept to his usual style as he wore his signature blue baggy jeans and a plain grey T-shirt. 

He added to his look with a pair of orange sunglasses and flashed photographers several thumbs up and peace signs as he made his way across the red carpet. 

Simon Cowell cut a casual figure in his trademark jeans as he posed on the red carpet on Tuesday night in Pasadena, California ahead of the America's Got Talent finale

Simon Cowell cut a casual figure in his trademark jeans as he posed on the red carpet on Tuesday night in Pasadena, California ahead of the America's Got Talent finale

Simon was joined by Heidi Klum who styled out a quick shoe swap with the help of fellow judge Howie Mandel

Simon was joined by Heidi Klum who styled out a quick shoe swap with the help of fellow judge Howie Mandel 

The music mogul finished off his look with a pair of pointed black boots and a simple black leather watch. 

At one point the famous media personality looked a bit surprised and widened his eyes and looked concerned before he laughed and smiled. 

In contrast to Simon's casual look Heidi and Sofia Vergara, 52, made jaws drop as they hit the red carpet.

The stunning duo co-judge the talent competition show with comedian Howie Mandel and creator Simon on NBC.

Hosted by actor Terry Crews, America's Got Talent kicked off its nineteenth season in May with eight weeks of auditions.

After six weeks of live quarterfinal and semi-final rounds, 10 remaining acts performed Tuesday night in one last bid to win the $1 million grand prize.

The winner of America's Got Talent will be revealed during the September 24 finale show.  

For the big night, Heidi and Sofia posed up in their most eye-popping frocks before heading to the judges panel.

He added to his look with a pair of orange sunglasses, pair of pointed black boots and a simple black leather watch

He added to his look with a pair of orange sunglasses, pair of pointed black boots and a simple black leather watch 

The talent show judge led the pack of celebrity judges but looked more dressed down than his colleagues including Heidi (pictured) who dazzled in a sequined gown

The talent show judge led the pack of celebrity judges but looked more dressed down than his colleagues including Heidi (pictured) who dazzled in a sequined gown

Heidi thanked Howie with a sweet kiss on the cheek after the comedian brought her the trainers in the large Sketchers bag

Heidi thanked Howie with a sweet kiss on the cheek after the comedian brought her the trainers in the large Sketchers bag

He was seen wrapping the shoes in tissue as he put them back in the box

He was seen wrapping the shoes in tissue as he put them back in the box 

Simon threw up a peace sign at the photographers
At one point the talent show judge looked a bit surprised

At one point the famous media personality looked a bit surprised and widened his eyes and looked concerned before he laughed and smiled

Heidi, 51, and Sofia Vergara, 52, made jaws drop as they hit the red carpet ahead of the America's Got Talent top 10 performances

Heidi, 51, and Sofia Vergara, 52, made jaws drop as they hit the red carpet ahead of the America's Got Talent top 10 performances

Simon's look was in sharp contrast to the gorgeous outfits worn by Heidi (left) and Sofia Vergara (right)

Simon's look was in sharp contrast to the gorgeous outfits worn by Heidi (left) and Sofia Vergara (right)

Heidi dazzled in a low-cut purple sequin dress that hugged her enviable curves. 

The German model accessorized with a diamond choker necklace while her blonde curls tumbled down her back and chest as she put on an animated display for the cameras.

As for makeup, the mother-of-four rocked sultry brown smokey eye paired with a nude lip and radiant peach blush.

She strutted around the venue in sky-high strappy silver heels. 

Meanwhile Sofia showed off her impressive cleavage in a plunging orange wiggle dress.

The fitted frock had a large bow situated on one shoulder and a corset-like bodice that emphasized Sofia's hourglass curves. 

The Modern Family, 52, wore her brunette hair down and opted for her go-to glam makeup.

The pair looked to be having a blast on the red carpet as the dynamic duo wrapped their around one another as they smiled in the direction of shutterbugs.

The stunning duo co-judge the talent competition show with comedian Howie Mandel and creator Simon Cowell on NBC

The stunning duo co-judge the talent competition show with comedian Howie Mandel and creator Simon Cowell on NBC

For the big night, Heidi and Sofia posed up in their most eye-popping frocks before heading to the judges panel

For the big night, Heidi and Sofia posed up in their most eye-popping frocks before heading to the judges panel

Heidi dazzled in a low-cut purple sequin dress that hugged her enviable curves
It had a halter necklace and a slit up the back that showed off her heels

Heidi dazzled in a low-cut purple sequin dress that hugged her enviable curves

She strutted around the venue in sky-high strappy silver heels

 She strutted around the venue in sky-high strappy silver heels

Howie looked ultra stylish as he arrived wearing a chic black suit with a skinny tie.

The standup star, 68, threw on shiny dress shoes and round-frame sunglasses to complete his finale outfit.

Wearing his signature black T-shirt and jeans combo, Simon made a brief red carpet appearance.

Earlier in the day, Heidi took to her Instagram Story to speak about her excitement for the finale performances.

'Today is the last day of America's Got Talent. I can't wait to see the show tonight,' she said.

It is the last night for the top 10 to show their skills before a winner is announced next week.

'I actually have two golden buzzers in there. Dee Dee (Simon) and Richard (Goodall),' Heidi told her 12.2 million followers.

The dynamic duo often wrapped their around one another as they smiled in the direction of shutterbugs

The dynamic duo often wrapped their around one another as they smiled in the direction of shutterbugs

As for Sofia, she showed off her impressive cleavage in a plunging orange dress
The fitted frock had a large bow situated on one shoulder and a corset-like bodice that emphasized Sofia's hourglass curves

As for Sofia, she showed off her impressive cleavage in a plunging orange dress

The Modern Family wore her brunette hair down and opted for her go-to glam makeup

The Modern Family wore her brunette hair down and opted for her go-to glam makeup

Richard, 55, is a school janitor from Terre Haute, Indiana who entered the competition at the encouragement of the students at his school.

Meanwhile, Simon is a nurse at California's San Quentin State Prison.

'I can't wait to see what they're singing and how good it's going to be. I'm sure it's going to be amazing,' she gushed.

The top 10 also includes: aerialists Sebastian and Sonia, dance group AIRFOOTWORKS, the Hakuna Matata Acrobats, dance group Brent Street, comedian Learnmore Jonasi, human-canine dancers Roni Sagi & Rhythm, drone artists Sky Elements and quick-change magician Solange Kardinaly.

'But, yeah, this is the last show before [the finale]... then we will have our winner. Maybe it's going to be one of my Golden Buzzers. Get the million dollars. I can't wait to find out. So make sure you watch us tonight,' Heidi said.

Fans have until September 18 at 7 a.m. ET to vote before the results are read live on the finale show on September 24. 

The cast, crew and fans of AGT are still mourning the death of Emily Gold, 17, who died by suicide according to the San Bernardino, California coroner's office. 

Howie Mandel, 68, looked ultra stylish as he arrived wearing a chic black suit with a skinny tie

Howie Mandel, 68, looked ultra stylish as he arrived wearing a chic black suit with a skinny tie

The standup star threw on shiny dress shoes and round-frame sunglasses to complete his finale outfit

The standup star threw on shiny dress shoes and round-frame sunglasses to complete his finale outfit

She was a member of the Los Osos High School dance team, which was eliminated from the competition after competing in the quarterfinals in August.

'The AGT family sends its heartfelt condolences to the family, friends and team members of Emily Gold,' the producers wrote on a picture of the young dancer in their Instagram stories on Tuesday.

'She was a bright young soul and will be deeply missed.'