Gin Wigmore sings at the wedding of Big Bang Theory star Kaley Cuoco

Kiwi singer-songwriter Gin Wigmore got the honour of singing 'The Big Bang Theory' actress Kaley Cuoco down the aisle as she married her partner Karl Cook.

The couple said their "I Do's" in a romantic ceremony in San Diego, California, with Gin singing 'I Will Love You'.

The 32-year-old Big Bang Theory star and her 26-year-old professional equestrian husband shared photos of their weekend wedding to Instagram.

The actress wore a stunning lace wedding dress for the ceremony, covered with a floor-length lace cape.

She followed up the outfit with a tight fitting low-cut lace jumpsuit for the reception.

Gin posted on her own Instagram a clip of her own singing, writing "A real honour to be part of such a truly magical moment in the most gorgeous setting for the incredibly awesome Kaley @normancook & Karl @mrtankcook."