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."
"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.