Beyoncé turned 42 on Monday, September 4 in front of the most adoring crowd of fans at Los Angeles' SoFi Stadium while on her record-breaking Renaissance World Tour.
And it wasn't just the fans, but also the celebrities who came out in droves, with A-listers pouring into the stadium to pay tribute to Queen Bey.
From the silver shimmer of Katy Perry and Jennifer Hudson, to the simple black fits from Meghan Markle and Hailey Bieber, here are some of the best (and flashiest) celebrity styles from Beyoncé's birthday show…
Diana Ross
© Getty ImagesBeyoncé was joined on stage by none other than Miss Diana Ross, who made a surprise appearance in a breathtaking black feathered gown to serenade the "Cuff It" singer and help fans celebrate her big day.
Katy Perry
© InstagramKaty Perry kept things simple but stylish for her Bey-day look, opting for a figure-hugging silver dress with a bardot neckline, pairing it with a matching silver clutch and sunglasses to boot.
Meghan Markle and Kerry Washington
© Getty ImagesIn a photo which has since gone viral, Duchess of Sussex Meghan Markle was spotted at the big Beyoncé show alongside none other than the singer's close friend Kelly Rowland (more on her later) and Kerry Washington, all dressed in black with touches of silver.
MORE: Meghan Markle takes Princess Lilibet's godfather to Beyoncé concert
Jennifer Hudson
© InstagramJennifer Hudson looked as shine-tastic as she could, all dressed up for her Dreamgirls co-star's big show in a metallic two piece, consisting of a bra-shaped bandeau top with a wraparound skirt and heels (and look at that hair and makeup!).
Kate Hudson
© InstagramKate Hudson kept things simple yet glam for her night of Beyoncé, dressed in a black top with a spaghetti strap with glistening silver jewelry to match her sequined mini skirt and rounded sunglasses.
SEE: Kylie Jenner and Timothée Chalamet go public as a couple at Beyoncé's star-studded concert
The Kardashians + Jeff Bezos and Lauren Sanchez
© Getty ImagesAnd the stars just keep aligning, with a vast majority of the Kardashian family in attendance. Kim and Khloe were joined by Kim's eldest daughter North West and Kourtney's daughter Penelope Disick respectively, and Kris Jenner was there with boyfriend Corey Gamble. Posing with them for photos were Amazon founder Jeff Bezos and his fiancée Lauren Sanchez, all dressed in varying shades of black and white, metallic, and sequins.
MORE: Meghan Markle shows off her dance moves as she parties with Prince Harry at Beyonce concert
Hailey Bieber
© Getty ImagesHailey Bieber kept things chic and relaxed (just perfect enough to jump around and sing loudly with) in her black tank and mini skirt, opting to bring the bling with her earrings and highlighter-heavy makeup.
Lizzo and Chris Rock
© Getty ImagesNo pair of celebs looked quite as pleased to be there as this duo did. Lizzo paid homage to her oft-proclaimed idol in a silver spandex dress with a hood and matching silver makeup. Chris Rock, on the other hand, kept it plain but on theme with a navy jacket atop a plain white tee.
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