Heidi Klum sizzles in a strapless metallic dress on the

Heidi Klum sizzles in a strapless metallic dress on the America’s Got Talent red carpet ahead of the season 18 finale

Heidi Klum made an eye-catching appearance as she walked the America’s Got Talent red carpet on Wednesday.

The 50-year-old supermodel, who has been favoring leopard print lately, wowed in a strapless metallic lavender dress.

The stunner highlighted her ample cleavage in the sexy look, which was pulled in at the center and accentuated her slender waist.

The fashionista paired the slinky look with a pair of dazzling gold heels that showed off her pedicured feet.

Her nails matched her toes as she flaunted a long, shiny apple red manicure.

Adorable: Heidi Klum made an eye-catching appearance as she walked the America's Got Talent red carpet on Wednesday

Adorable: Heidi Klum made an eye-catching appearance as she walked the America’s Got Talent red carpet on Wednesday

Stunning: The 50-year-old supermodel wowed in a strapless metallic lavender dress

Stunning: The 50-year-old supermodel wowed in a strapless metallic lavender dress

Heidi beamed as she hit the repeat machine before filming the latest episode of the long-running competition series.

The German-born beauty wore her bright blonde locks in her signature layered and shaggy cut.

Her makeup was fine-tuned, enhancing her natural beauty as she wore bold dark eyeliner and mascara.

It was balanced out with soft pink blush on her cheeks and a glossy nude lipstick that drew attention to her pout.

Earlier in the day, the mother of four was seen arriving at the studio in Pasadena ahead of filming.

She was just as stylish as she was on the red carpet, just a little more reserved.

The superstar turned heads in a fitted leopard print turtleneck, which she wore with matching stiletto ankle boots.

Klum also wore short and slightly frayed charcoal gray jeans and a large, casual black leather bag.

Busty: The beauty highlighted her ample cleavage in the sexy look, which was pulled in at the middle and accentuated her slim waist

Busty: The beauty highlighted her ample cleavage in the sexy look, which was pulled in at the middle and accentuated her slim waist

Hairstyle: The German-born beauty wore her bright blonde locks in her signature layered and shaggy cut

Hairstyle: The German-born beauty wore her bright blonde locks in her signature layered and shaggy cut

Stylish: Earlier in the day, the mother of four was seen arriving at the studio in Pasadena ahead of filming

Stylish: Earlier in the day, the mother of four was seen arriving at the studio in Pasadena ahead of filming

Looking good: She looked just as stylish as she did on the red carpet, just a little more demure Klum also wore short and slightly frayed charcoal gray jeans and a large, casual black leather bag

Looking good: She looked just as stylish as she did on the red carpet, just a little more demure

Coordination: The superstar turned heads in a fitted leopard print turtleneck sweater which she wore with matching stiletto ankle boots

Coordination: The superstar turned heads in a fitted leopard print turtleneck sweater which she wore with matching stiletto ankle boots

Accessory: The former Victoria's Secret Angel protected her eyes with a pair of large, square sunglasses

Accessory: The former Victoria’s Secret Angel protected her eyes with a pair of large, square sunglasses

Sharp!  Heidi's long nails were painted a strikingly bright, shiny shade of red

Sharp! Heidi’s long nails were painted a strikingly bright, shiny shade of red

Klum’s co-star Howie Mandel, 67, was also spotted on site.

The Canadian television personality looked gorgeous in a black outfit paired with white sneakers.

He layered his suit over a black crew-neck T-shirt and also added a wide-brimmed fedora hat.

The handsome host wore round ombre sunglasses and sported a graying goatee.

63-year-old Simon Cowell was also present at the filming, appearing in faded jeans and his signature unfussy crew-neck T-shirt.

The English entertainment manager wore pointy brown dress shoes.

Cowell wore rectangular, orange glasses with black rims.

And Reba McEntire, 68, looked better than ever as she wore a royal purple outfit.

Star power: Klum's co-star Howie Mandel, 67, was also there

Star power: Klum’s co-star Howie Mandel, 67, was also there

Must-see look: Simon Cowell, 63, was also present at the filming, appearing in faded jeans and his signature fuss-free crew-neck T-shirt

Must-see look: Simon Cowell, 63, was also present at the filming, appearing in faded jeans and his signature fuss-free crew-neck T-shirt

The living legend bared her cleavage in a low-cut, long-sleeved velvet top.

The blouse has been accentuated with white trim and glittering stones have been added as eye-catching accessories.

Her top was designed in a wrap style and had flattering ruffles down the middle.

She wore figure-hugging black leggings and sparkly black over-the-knee boots.

Reba’s chestnut-brown, shoulder-length curls were loosened voluminously and trimmed with fringes.

She wore sparkly earrings that reached past her chin and complemented her glittery look.

Icon: Reba McEntire, 68, looked better than ever as she wore a royal purple outfit The living legend bared her cleavage in a low-cut, long-sleeved velvet top

Icon: Reba McEntire, 68, looked better than ever as she wore a royal purple outfit

Beautiful: Reba's chestnut brown, shoulder-length curls were voluminously puffed up and trimmed with fringes

Beautiful: Reba’s chestnut brown, shoulder-length curls were voluminously puffed up and trimmed with fringes

Duo!  Sofie Dossi and Reba pose before the live show

Duo! Sofie Dossi and Reba pose before the live show

Cute: The country singer and beau Rex Linn posed together Rex wore jeans and a patterned button-up shirt

Cute: The country singer and beau Rex Linn posed together

Tuesday night’s AGT show was the fifth and final qualifying episode, with the final group of artists vying for their spot in next week’s finale.

The show included performances by Eduardo Antonio Trevino of Humble, Texas, hula hoop artist Grace Good of Las Vegas, singer Lachune of South Carolina, seven-year-old dancer Eseniia Mikheeva and London magician Mandy Muden.

Also in attendance were Japanese dance group Avantgardey, Missouri country duo Trailer Flowers, Tanzanian gymnasts The Ramadhani Brothers, Sofia’s Golden Buzzer Act, Brazilian singer Gabriel Henrique and South Korean magician Sangsoon Kim.

The final performance of the evening, the 82nd Airborne Division All-American Chorus, received a standing ovation from Simon Cowell.