Mrs. Bieber is looking icy for summer.

Hailey Bieber rocked a powder blue low-backed, cutout dress in a series of new Instagram photos yesterday, with the sleek style she wore revealing plenty of side boob.

The 25-year-old captioned her post with a series of butterfly, shark and pink bow emojis, striking various poses in the longsleeved turtleneck style, which she wore over the weekend to friend Stephanie Shepherd’s wedding to Larry Jackson.

She clutched a fuzzy baby blue Bottega Veneta bag ($3,200) in the post, accessorizing with diamond drop earrings.

The Rhode founder wore blue eyeshadow and rosy pink lipstick, wearing her hair swept over to the side.

“You can’t spell hailey without hail,” one fan commented. “Hail to the queen.”

“How can someone slay so much that slay has become such a mediocre word to describe her SLAY,” another Instagram user wrote.

“If I were Justin I would have married you too,” a third added. “The prettiest.”

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Her blue look follows the sparkling pink Vivienne Westwood minidress she wore to an anniversary dinner for her Rhode skincare line earlier this month.

She showed off the crystal-covered frock in a series of Instagram posts, pairing the outfit with a sparkling pink Cult Gaia bag ($428) and $165,000 in Tiffany diamonds.

She also celebrated another Rhode milestone in London last month after launching her brand in the UK while wearing a glittery Numero Ventuno dress in the same shade of gray as her product’s bottles.