Barney told the celebrity news website the June 15 event was "breathtaking."
"Words can't even describe the weekend," she said. "It was the most beautiful thing I've ever seen. It went by so fast!"
The bride wore an $8,900, hand-beaded Mark Zunino Haute Couture gown, while the groom wore an Armani tuxedo, UsMagazine.com said.
2014: The Year in Music [PHOTOS]