JESSICA SIMPSON AND SISTER ASHLEE SIMPSON ROSS ARE THE MOST BRIDESMAIDS AT FRIEND'S WEDDING GLAMOROUS

Jessica Simpson and Ashlee Simpson Ross looked effortlessly elegant as they stepped out together to celebrate their friend's wedding over the weekend.

This sister style moment was simply "Irresistible."

Jessica Simpson and Ashlee Simpson Ross proved once again why they're forces to be reckoned with in the fashion department. On Sunday, Oct. 10, the dynamic duo brought the wow factor to their friend Stephenie Pearson's wedding when they served as bridesmaids for the special occasion.

And gone are the days when bridesmaids were forced to wear hideous gowns. Before the bride walked down the aisle in a posh white gown, both Jessica and Ashlee made their way to the front in different glitzy designs that were bedazzled all over.

Jessica donned a metallic gold gown that featured ornate beading and a plunging neckline. As for Ashlee? The "Pieces of Me" musician wore a feathered Marchesa creation, which included a sexy keyhole cutout and dramatic sleeves.

Though the siblings slipped into different dresses, their glam was similar, as they both opted for nude-colored lipstick and a smoky eye.

"Most beautiful wedding," the Ashlee + Evan star commented on Stephenie's Instagram post about her wedding to Jovar Andrews. "love you."

See Jessica and Ashlee's stunning looks as bridesmaids in our gallery below! Plus, take a peek at other celebrities all dolled up for their loved ones' weddings.

Jessica Simpson and Ashlee Simpson

The sisters came through as sparkling bridesmaids at friend Stephenie Pearson's wedding in October 2021.

Selena Gomez

The singer served as maid of honor at her cousin Priscilla DeLeon's wedding in July 2019.

Kirsten Dunset

The actress was by her best friend Cindy McGee's side at Sant'Ignazio Church in

Rome.

Taylor Swift

The singer served as a bridesmaid at her longtime friend Abigail Anderson's wedding.

Hailey Baldwin and Ireland Baldwin

Hailey served as the maid of honor at sister Alaia Baldwin's wedding, while cousin Ireland also served as a bridesmaid. Here they are pictured with Hailey's mom Kennya Baldwin.

Lauren Conrad

The Hills alum and fashion designer served as a bridesmaid at friends Cassie Herschenfeld and Ben Katz's wedding in Ojai, California in August 2017, more than six weeks after she announced she had given birth to her and husband William Tell's first child, son Liam.

Miranda Kerr

The supermodel was by her brother Matty's side when he married Jimmy Wright in Australia on Dec. 30, 2016.

Amy Schumer

After wrapping production on a movie with Goldie Hawn, Schumer traveled to be by Tara Alana's side. The bride exchanged vows with Rusty Fitton, as Schumer's boyfriend, Ben Hanisch, looked on.

Rachel Bilson

The Hart of Dixie alum was a bridesmaid at the March 2017 wedding of Gelareh Khalioun, who worked as a costume designer on the show.

Rachel Bilson

The O.C. darling slipped into a whimsical pale green dress for the show's creator Josh Schwartz's wedding in 2008.

Taylor Swift

The pop star was the maid of honor at childhood friend Britany Maack's wedding in Pennsylvania in February 2016 and both wore Reem Acra dresses.

Lauren Conrad

The fashion designer and The Hills alum was there for her friend Maura McManus on her big day on Aug. 16. She was joined by co-star Lo Bosworth, who also served as a bridesmaid.

Sofía Vergara

The Modern Family star sported a pastel yellow dress while serving as a bridesmaid at her friend's wedding in June 2015.

Rachel McAdams

Found: Something blue! The True Detective star stepped in as a bridesmaid for sister Kayleen's Memorial Day

wedding.

Eva Longoria

The actress went barefoot through the

streets of Spain during her pals' nuptials.

Eva Longoria

Back at it again! She serves as a stunning bridesmaid once again, this time wearing a slick strappy black dress.

Beyoncé

Talk about a star-studded bunch! Queen Bey donned an angelic white gown for her bridesmaid's duties at sister Solange Knowles' New Orleans wedding last year.

Lady Gaga

After posting ample bachelorette party pics, Gaga kept it classic in a whimsical lavender gown for her pal's New Orleans weddings in March 2015.

Jennifer Lawrence

The Hunger Games starlet sports a beautiful cream creation for big brother Blaine's wedding, and even scored a cover cameo on the cover of Martha Stewart Weddings.

Cara Delevingne

Round two! Cara plays bridesmaid again in this breezy white gown for sister Poppy's 2014 wedding.

Ashley Greene

Pretty in pink indeed! Ashley slipped into a stunning Marchesa gown for her publicist's wedding in Turks and Caicos back in 2013.

Jessica Simpson

While she's been a bridesmaid in no less than six weddings, this elegant pink ensemble may be her best bridal party look to date.

Naomi Watts

She may just be a bridesmaid, but Naomi definitely steals the show in this striking white lace LBD.

Brooklyn Decker

That face! The supermodel gets goofy at her pal's nuptials.

Mary-Kate & Ashley Olsen

Bohemian beauties! The twins were absolutely angelic on their godmother's big day in Los Cabos back in 2007.

Sarah Jessica Parker

And the best boss ever award goes to.... SJP! The Sex and the City alum dons a stunning violet number as a proud member of her assistant's bridal party.

Katherine Heigl

The 27 Dresses star was a real bridesmaid for her sister's wedding in 2007.

Ashlee Simpson

Fun fact: Ashlee and sister Jessica Simpson both served as bridesmaids for pal Lauren Zelman in 2012.

Katharine McPhee

Katharine McPhee

Jennifer Garner

The actress and her fellow bridesmaids are simply lovely in lilac gowns for this 2006 ceremony.