The 39-year-old singer and actor sent love to Teigen in an Instagram post Friday on the model's 33rd birthday.
Legend shared a photo of Teigen wearing a mint-colored blouse. He couldn't help but gush about the Lip Sync Battle host in the caption.
"It's Chrissy's birthday! I love you, my queen!" the star wrote.
Legend and Teigen married in September 2013 and are parents to two children, 2-year-old daughter Luna and 6-month-old son Miles. Teigen posted a video Wednesday of Luna feeding Miles from a bottle.
"Hold it with two hands, Miles," the toddler instructs her baby brother.
Legend, Teigen and their kids appeared in the NBC holiday special A Legendary Christmas with John & Chrissy this week. Teigen confirmed in a tweet Wednesday that it was a "very special" experience to film with her family.
"Very happy to have this memory (and footage!) forever. Thank you guys so much for watching my heart is happy," she wrote.