Mystery woman pays for bride-to-be's wedding dress

SALT LAKE CITY -- A young bride-to-be says she will never forget what a complete stranger did for her just months before her big day.

Jimmy Gillespie proposing to Liz Jensen in Provo, Utah on Jan. 25, 2015. (Photo credit: ABC News / Jimmy Gillespie).

Liz Jensen says she received a wonderful surprise when she went to pick up her wedding gown recently at a Utah dress shop.

Before she could even pull out her wallet, the store owner let Jensen know that she had exciting news for her.

"I said, 'okay, what?' I was wondering if they had some kind of coupon or something. And she said, 'I want you to know that your dress has been paid for.' And so, I immediately just started to cry and was overcome with emotion," said Jensen.

Gillespie and Jensen meet during their freshman year at Brigham Young University. (Photo credit: ABC News / Bryce Gillespie).

Shocked and confused at the same time, Jensen questioned the store owner about who paid for her $465 wedding dress in full.

Turns out the mystery donor was another bride-to-be who wanted to do something nice and remain anonymous.

"In my mind I thought, 'That happens at the drive-thru at McDonald's, that doesn't happen with a wedding dress," Jensen told ABC News. "I was just so incredibly touched. To have that person who can look inside themselves to do something nice for someone else, it's something I'll never forget for sure."

The couple plans to use the experience to personalize their wedding reception.

"We want to have our marriage built upon that principle of giving to other people," Jensen told ABC News. "We want to have the news clip of our wedding dress story and a table set up where guests will pledge to be kind and do a service for someone else."