Lauren Sanchez sizzles in low-cut dress at gala.

and were spotted arriving to 's pre-Met Gala party in on Sunday evening.

The 62-year-old Amazon founder and 56-year-old former journalist looked stylish while stepping out of a black Cadillac SUV ahead of fashion's biggest night.

Bezos wore a light grey suit, black shirt, and sleek black boots while holding his Sanchez's hand.

He sported a neatly trimmed white beard and lightly tinted aviator shades.

Meanwhile, his wife of nearly one year joined him in a red jacquard ensemble boasting a long skirt and low-cut short-sleeved blazer. 

It comes amid claims the couple .

Sanchez punctuated her look with a pair of pointed-toe black stilettos and carried a small black handbag.

Her brunette locks were arranged in a pristine blowout with a side part and one side tucked behind her ear.

Bezos wore a light grey suit, black shirt, and sleek black boots while holding his wife's hand