The actress, who plays waitress Penny in the sitcom, joined husband Ryan Sweeting at the 22nd Annual 'A Night at Sardis' event to benefit Alzheimer's Association in Los Angeles.
Kaley was rather ethereal in a flowing white gown, which highlighted her California girl tan. She kept her blonde hair tied back and added a bit of colour to the look with a neon pink lipstick.
It was a family affair for Kaley, who also posed alongside sister Briana Cuoco on the red carpet. Briana recently appeared as a contestant on the US edition of The Voice.
Gorgeous Kaley married tennis player Ryan in a fire and ice-themed ceremony on New Year's Eve.
They tied the knot in front of friends and family at the Hummingbird Nest Ranch in Santa Susana, California, after just six months of dating.
Meeting on a blind date arranged by friends, they ended up moving in together the very next day. Three months later they were engaged, and then they ended the year with a big wedding.
"I've been in previous relationships with great people that I just never saw that ending and marriage wasn't the right thing," said Kaley earlier this year. "Ryan and I met and it was completely hearts in our eyes. I get emotional talking about him because he is the most wonderful person in the world. I couldn't be happier. It's meant to be."
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Celebrities who have married in 2014 in pictures:
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