It's Galentine's Day! From Jennifer Aniston and Courtney Cox To Snooki & JWoww — Celebrate Girl Power With Our Favorite Celebrity Besties : Photos

But on this Galentine's Day, we're celebrating the female dynamic duos that have stood the test of time and remained by each other's sides no matter what.

From Friends costars Courtney Cox and Jennifer Aniston, who have been close for decades, to Garcelle Beauvais and Sutton Stracke, who have had each other's backs in even the most explosiveReal Housewives fights, these besties will be there no matter what.

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These two give "Friends" a whole new meaning. The Hollywood superstars have been close for over 25 years after meeting on the set of the iconic NBC sitcom in 1994. Through marriages, divorces and acting gigs, these two have remained thick as thieves. In fact, Aniston, 52, is even the godmother of Cox's 17-year-old daughter, Coco Arquette!

Always eager to send each other well wishes, The Morning Show star made sure to celebrate her bestie's birthday on her Instagram Story this year, posting several clips and photos of the two together. "Happy Birthday to this ridiculously special human @courteneycoxofficial," Aniston wrote in the June 15, 2021, post. "Time flies when you're having fun!"

Despite their iconic characters Sharpay Evans and Gabriella Montez being arch rivals, their real life counterparts could not be closer. Ashley Tisdale, 36, and Vanessa Hudgens, 33, shot to fame together after meeting on the set of the original High School Musical in 2006 — and have stayed best friends ever since.

After the "He Said She Said" singer gave birth to daughter Jupiter, the "Come Back To Me" vocalist — who was a bridesmaid in the former Disney star's 2014 wedding to Christopher French — was on hand to spend time with Tisdale's little girl. "Juju & Aunt Nessa," the producer wrote on her Instagram Story alongside a picture of Hudgens cradling her Jupiter. "Literally Jupiter opened her arms like hold me the minute she met Ness. It warmed my heart."

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Michelle Williams and Busy Philipps are each other's day ones in Hollywood — and often times plus ones to award shows! The Tinseltown pals first met during their younger years starring on Dawson's Creek in the '90s.

For the Manchester By The Sea star's 40th birthday in 2020, the former Busy Tonight host, 42, wrote a sweet message to her bestie alongside heart warming photos. "I love these pictures. Because it’s just truly so us," Philipps wrote to Williams, 41. "I can’t believe my best friend is 40. We met 20 years ago, which makes no sense because we’re still 27."

These The Real Housewives of Beverly Hills costars give loyalty a whole new meaning. After the two joined the hit Bravo show in season 10, they soon became allies amidst the chaos of their other cast members while quickly becoming fans' favorite dynamic duo on the show.

After the boutique owner, 50, got caught in a heated feud — that has spanned multiple seasons — with their fellow housewife Erika Jayne, the actress, 55, made it clear she sided with Stracke and vice versa. “Erika’s relationships with Garcelle and Sutton have hardly improved since last season and this fight certainly didn’t help matters,” an insider told Page Six about their alliance. “Sutton and Garcelle have only gotten closer."

From being reality television royalty to becoming mamas, Nicole 'Snooki' Polizzi and Jenni 'JWoww' Farley have been through it all together. The Jersey Shore cast members first met while filming the first season of the pop culture phenomenon in 2012. The two even got their own spin off show, Snooki & Jwoww, that chronicled their loyal friendship and navigating motherhood.

“We're best friends and we've been working together ever since Jersey Shore ended," Polizzi, 34, told Allison Kugel in 2018 of Farley, 36. “It helps that we're always working together."