Selena Gomez celebrated her 34th birthday in Florence, Italy wearing De La Vali Soleil Chiffon Maxi Dress ($815.00), Ferragamo Synthetic Straw Hug Bag ($3,400.00) and Essentiel Antwerp Jholly Hoop Earrings ($138.93).

In another photo she is seen wearing a Wilfred Only Slip Satin Maxi Dress (Sold Out), Ferragamo Synthetic Straw Hug Bag ($3,400.00), Le Specs Love Train Sunglasses ($50.00), Urban Outfitters Valerie Checkered Crochet Triangle Headscarf (Sold Out) and Dune Manic Mules ($200.00).

On this photo Selena is seen wearing Devon Windsor Carmella Full-Piece Swimsuit ($198.00) and Le Specs Love Train Sunglasses ($50.00).

For this photo Selena wore Barbuda Top ($113.00) and Seychelles Bottom ($90.00) by Monday Swimwear.

In another photo Selena is seen wearing Essentiel Antwerp Striped-Pattern Top ($211.00).

Ariana Grande shared some photos on instagram wearing Sandy Liang Hugo Dress ($495.00) also available at Ssense.

Kylie Jenner shared a photo on instagram wearing Paloma Silk Cami ($170.00) and Paloma Silk Skirt ($250.00) and Silver Heel Sandals (Not available online) all by Khy.

Shay Mitchell shared some photos on instagram wearing Lattice Cupped Corset ($580.00) and Outline Wool-Blend Tailored Pants ($340.00) both by Fancì Club, Bru Eyewear Tommy Sunglasses ($160.00) and Zara Wedge Heel Sandals ($59.90).

Selena Gomez shared some photos on instagram wearing Free People Soleil Pant Set ($168.00), Essentiel Antwerp Jholly Hoop Earrings available here ($100.00) and here ($138.93) and Bearpaw Tabitha Slippers ($69.99).

Chrissy Teigen shared some photos on instagram wearing Calle del Mar Cropped Crocheted Cardigan ($1,500.00), Alaïa High-Rise Barrel-Leg Jeans ($1,500.00), Bottega Veneta Black Loop Mini Shoulder Bag ($2,419.00), Prada Symbole Tortoise Sunglasses ($407.00), Jacquie Aiche Emily 14-karat gold Moonstone and Diamond Necklace ($4,500.00) and The Row Woven Davis Leather Loafers (Sold out).

Lindsay Lohan celebrated her 40th birtday wearing Oscar de la Renta Bead-Embellished Fringe and Mesh Mini Dress ($11,990.00), Cartier Diamond and Gem-Set Panthére de Cartier Necklace (Price upon request) and Aquazzura Hold Me Crystal-Embellished Satin Sandals ($923.00).

Khloé Kardashian shared some photos on instagram wearing Réalisation The Heidi Dress ($320.00), Leset Lauren Crop Cardigan ($160.00), Bottega Veneta BV1463S 003 Sunglasses ($241.00+) and Christopher Esber Jo Flip Flop ($235.00).

Nina Dobrev shared a photo on instagram wearing Rouje Fauve Citron Dress ($172.00), Alo Sunset Sneakers ($225.00).

Jennifer Lopez shared some photos on instagram wearing Cotton Mini Dress with Straps and Cut-Out Detailing ($4,195.00), Lace Headscarf ($879.00), DG Hinge Sunglasses ($505.00) and Polka-Dot Pumps ($889.00) all by Dolce & Gabbana.