"Congratulations, Catherine O'Hara. You are a queen, an icon and I'll happily lose to you any single day," Cuoco said in a smiling video on her Instagram Stories. "It has been an honor. I am so happy for you. You should have gotten one of these ages ago! Love you, girl."
The actress later changed into a tie-dye hoodie (a la Jason Sudeikis) as she and Cook had fun eating a cake with Cuoco's face on it. Cuoco jokingly declared, "How dare you!" and fake slapped her husband after he took a big bite out of her face.
Earlier in the weekend, Cuoco shared a tearful video of herself after Cook surprised her by coming home from an equestrian event to be by her side for the awards show.
"I can't believe you got me so good. I can't believe you did that. These are tears by the way," she said, referencing her tear-covered shirt. "I'm so glad you're here."
Cook also shared some love for his wife on Sunday night via Instagram by posting a photo of her getting ready for the award show, writing, "DAMN!!! Why did you decide to marry me! @kaleycuoco you’re the most amazing woman ever! Congratulations, here we go golden globes!"