With an idyllic bike ride in the Hamptons, a birthday lunch, and a private Bridgerton-themed party (complete with a custom Bridgerton manicure), Jennifer Lopez is celebrating her 55th birthday week in style. Like a true Leo, she can't limit her festivities to just one day. Still, J.Lo saved her best birthday outfit for the official day on Wednesday, July 24.

Jennifer Lopez once again chose the sweetest style for her 55th birthday celebration journey as she pedaled through the Hamptons on a white Linus bike.

Like the white graduation mini-dress she wore to her son-in-law Sam Affleck's graduation, J.Lo's Dior birthday dress was perfect for sipping mint juleps at a country club surrounded by 30-foot hedges. The shirtdress's structure and wallpaper toile pattern are mature, and the sheer fabric is a bit sexy. Pair that with her trusty white bicycle and high ponytail, and anyone who sees her pedaling will never doubt that today is her day. You can also guess that she is a big fan of Maria Grazia Chiuri. From her laced Dior bag to her head-to-toe business casual, Lopez has been wearing the French maison frequently this summer.

The singer completed her postcard-perfect outfit with ombre sunglasses (oversized eyewear and likely from Chloé, one of her favorite brands) and a diamond engagement ring. Lopez also tied the semi-sheer dress together with a white leather belt and added gold hoop earrings for contrast.

Jennifer Lopez's 55th birthday didn't end with just one photo shoot. Before or after dressing up in Dior, the “Let's Get Loud” singer took to Instagram to show off her natural beauty in a low-cut Gooseberry Intimates white swimsuit. The same one-piece first appeared in her Italian travel wardrobe last month, but this time she paired it with a Cartier bracelet. 'This is me... Now,” she wrote, referring to her recent album and her milestone birthday.

While on vacation in the Hamptons, Jennifer Lopez successfully combined her love of runway fashion with down-to-earth coastal cyclist styling. Just yesterday, she cycled in a floral set and fisherman sandals from the Hamptons, and just days before that, she hit the sidewalk in everything from a Chanel T-shirt and flip-flops to a relaxed look that embraced the overalls trend courtesy of Ralph Lauren. Lopez keeps her vast collection of designer tote bags mostly in her beach house, with the exception of two rare Hermes bags she spotted on a shopping trip.

If you thought this was a sign that Jenny From the Block was stepping back from luxury, think again. She released a video of her Bridgeton-themed party for her birthday last weekend. Lopez wore a candy-like Regency gown with layers of tulle and embroidery (plus a birthday tiara) and waltzed with guests on the outdoor dance floor while a live string quartet played in the background. Lopez also entertained the entourage with a glass of champagne and a song of her own before carving the birthday cake.

Jennifer Lopez's birthday trip to the Hamptons seemed to have everything a girl could want: perfect weather, an endless supply of crisp dresses and fisherman sandals, and a close inner circle (minus husband Ben Affleck, who is back in Los Angeles) Looks like there's just one thing missing to make this J.Lo's ultimate fashion moment.