Chrissy Teigen is upset about losing her wedding vows.

The Sports Illustrated model revealed she lost the touching promises she penned to make to her fiance John Legend at their upcoming nuptials after she accidentally deleted them from her computer's hard drive.

The brunette beauty, who recently revealed she never wears underwear, shared her misery on Twitter on Saturday (10.08.13), shortly before flying to Tokyo, Japan, writing: ''completely lost everything on my hard drive with no chance of recovery. now I have to get drunk and write my vows all over again.''

The 27-year-old model is set to tie the knot with the 'Ordinary People', 34, hitmaker in early September near Lake Como in Italy.

A source previously revealed that they chose the scenic location because ''that's where they fell in love.''

The insider said that the couple's guests would be staying in a hotel in the region for about four or five days for the celebration.

Chrissy, who got engaged to John in 2011 after four years of dating, is letting her wedding planner have complete control of her big day.

She recently said: ''I'm excited. I can't wait for the ceremony. [John] and I have been working and travelling so much that we just let our wedding planner do everything. We're not neurotic about it. I just want to finally see all of my friends in one area.''