The 27-year-old singer has on obvious affinity for all things sparkly, wearing a blinged-out tiara and later a headpiece made of vintage brooches, not to mention her huge engagement ring, so it's no surprise she also added some shiny shoes into the mix.
The bride's footwear designer of choice? Stuart Weitzman, who designed two similar pairs of peep-toe double platform "Avalon" sling-back pumps for both the ceremony and the reception.
For the former, Underwood opted for the heels in white satin with the heel and platform encrusted with pink Swarovski crystals, which were also scattered over the top of the shoe. The shoes remained mostly hidden under her long Monique Lhuillier gown.
For the reception, the country crooner donned a second pair of the Stuart Weitamen pumps -- with even more bling on them! -- in a darker hue to match the sash of the strapless Monique Lhuillier minidress she changed into, which provided plenty of room for the shoes to shine.
"These crystal pave double platform peep-toes selected by Carrie were the perfect wedding shoes for her," Weitzman says. "They added playful glamour to complement her ultra-feminine theme."
Fans of the $750 shoes Underwood wore can place a special order by calling 212-750-2555 or they can scoop up other "Avalon" styles, such as this $302 buff python option, or $355 this glittery black and silver version.
For more celebrity wedding scoop, check out which designer Emily Blunt wore for her wedding in Italy to "The Office" star John Krasinski.