Joanna Gaines reveals Chip Gaines' 'big' Valentine's Day gesture

Chip Gaines' love for Joanna Gaines was written in the sky on Thursday — well, basically.

The "Fixer Upper" star surprised his co-star wife on Valentine's Day by penning a message on a silo at Magnolia Market, a shopping complex in their hometown of Waco, Texas.

In bold "John Deere green" letters, Chip wrote: "Chip hearts Jo."

MILEY CYRUS TWEETS LIAM HEMSWORTH NSFW VALENTINE'S DAY MESSAGE

"That's big love @chipgaines😍," Joanna captioned an Instagram post revealing Chip's special gift.

Chip's grand gesture wasn't just appreciated by Joanna — fans also marveled at the sweet but simple note. The post received nearly 500,000 likes and thousands of comments as of Friday morning.

"Chip can always surprise his love Jo ❤️💜," one fan gushed.

"Get it Chip. Chip’s school of love," another added.

"Now that’s truly romantic and sweet! Love in forever chip and Jo! You rocked it chip," a third wrote.

'FIXER UPPER' STAR CHIP GAINES SHARES CLOSE-UP OF 3-WEEK-OLD SON CREW: 'MY HEART IS FULL'

The famous HGTV stars, who first met in 2001, celebrated their 15th wedding anniversary on May 31, 2018.

“It's been a good fifteen years @chipgaines ❤️ Here's to fifty more…” Joanna wrote on social media at the time, sharing a photo from their wedding ceremony.

“15 years.. where’d they go 15 years.. I’d like to know 15 more, to God I pray 15 more just to make her day,” Chip wrote in a tweet marking the special day.

The couple announced the birth of Crew, their fifth child — joining siblings Emmie Kay, 8; Duke, 9; Ella, 12; and Drake, 13 —  on June 23, 2018.

"And then there were 5.. The Gaines crew is now 1 stronger! 10 beautiful toes and 10 beautiful fingers all accounted for, and big momma is doing great! #blessedBeyondBelief," Chip announced at the time.