Sydney SweeneyMET Gala in New York City on Monday.

The Euphoria actress, 26 – who recently showed off her preppy style during an outing in the Big Apple – joined other celebrities on the red carpet during the annual event, such as Zendaya and Jennifer Lopez.

She was breathtaking in a one-shoulder, light blue tulle gown from Miu Miu that flowed down into a full skirt to brush the ground.

Blue, floral details with black stems were embroidered onto the bodice as well as the upper skirt portion to follow this year’s dress code: The Garden of Time.

Sweeney turned heads as she unveiled darker locks that fell down in light waves, allowing her bangs to gently fall onto her forehead.

The ‘do was styled by hair pro Glen Oropeza, who used a real-hair wig to create the dramatic look, revealing that Sydney didn’t want to dye her own tresses for fear of damaging them.

So, the beauty expert used reparative products from Kerastase, including the Resistance Serum Extensioniste and the Elixir Ultime Original Oil, on the actress’s natural hair, before styling the wig using the brand’s Elixir Ultime Original Oil and Laque Extreme.

Sydney also opted for a pair of black leather, opera-length gloves to coincide with the color scheme of her look.

The Hollywood star accessorized the outfit with a pair of dainty earrings as well as a glittering, silver necklace from De Beers jewelry, per Harper’s Bazaar.

Her makeup was glammed up for the night, and comprised of a layer of mascara to her lashes as well as a light pink blush on her cheekbones.

A ɴuᴅᴇ-colored, glossy tint was worn on her lips while shimmering glitter was added to her cheeks as well as her upper body for a magical feel.

Sydney teamed up with makeup artist Melissa Hernandez for the evening, with the beauty pro revealing how she ensured the actress’s skin was glowing by prepping it with products from Laneige – a brand for which the Euphoria star serves as a spokesperson.

Melissa used the Bouncy & Firm Sleeping Mask for a ‘lit-from-within glow’, while the Water Bank Blue Cream Moisturizer helped to ensure ‘deep, long-lasting hydration’ all night long.

The hem of the gown fell into a long train that flowed down behind the actress and also concealed the shoes that she donned for the night.

Sweeney struck a variety of poses on the red carpet that was bordered with greenery and white flowers as she attended the festivities.

Before arriving to the event, the Anyone But You star was seen at The Carlyle H๏τel and added a sheer, black veil on top of her head that contained rhinestone details.

She also wore the piece as she exited the H๏τel in the Big Apple as she headed to the glitzy affair.