Justin Timberlake is clearly more in love with Jessica Biel than ever these days!

For the actress' 34th birthday on Thursday, the singer posted a sweet pic of the duo on Instagram with an extremely heartfelt note attached.

"Happy BAE-DAY, baby!! I can't put into words what you mean to me… You are the GREATEST Mommy and Wife a man could ever ask for," the 35-year-old wrote. "I love you to the MOON AND BACK!!! –Your Huz."

The duo, who are parents to 10-month-old son Silas, couldn't keep their affection for one another hidden at the Vanity Fair Oscar Party on Feb. 28, giggling and whispering in front of the cameras.

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While being inducted into the Memphis Hall of Fame in October, Justin gushed about his "beautiful" wife, tearfully stating, "Baby, I love you more than I could put into words and more than any song I could ever write."

Can you say relationship goals?!?!