Serena Williams went back in time for her star-studded baby shower. The tennis icon threw a 1950s-themed party at Nick’s 50’s Diner in West Palm Beach, Fla., over the weekend.

Among the A-list celebs in attendance included Serena’s gal pals Ciara, Kelly Rowland, La La Anthony and of course, her sister Venus Williams. All of the guests were decked out in ‘50s garb and posted their OOTDs (Outfit of The Day) on their respective Instagram pages with the hashtag #ShakeRattleandRoll2017, reports E! Onlinez.

Serena wore a bouffant hairstyle with a black top and yellow mini-skirt with a poodle design at the hem. The mom-to-be accessorized her outfit with a huge white pearl necklace. Ciara posted an Instagram video of herself, Serena and her sister feigning fake shock over the athlete's baby bump. We must also salute La La for channeling Rosie the Riveter with her outfit complete with blue checkered shirt, denim jeans and matching bandana.

Overall, Serena's baby shower was a blast, Daddy-O! Check out the photos above and below.

Mike Coppola / John Sciulli / Al Bello, Getty Images