"Our friends just egg him on," explained Lautner's wife, influencer Tay Lautner.
The track, originally performed by Rosemary Clooney, appeared in 1954's White Christmas.
"I am pro romance. Yay romance," the pop star and TV show host wrote on Instagram.
The new season of The Kelly Clarkson Show will premiere Oct. 16.
"He's rock and roll ... you might not be so special, Garth," Kelly Clarkson quipped in response to the encounter.
"I have always been, and will continue to be, committed to creating and maintaining a safe and healthy environment," she said.
The screen legend had no idea she's become a viral hit on TikTok.
After 21 years together, Hart tells Kelly Clarkson he even forgets some of the things he & his pop star wife disagree about.
The 2016 track was the British singer's breakthrough hit in both the U.K. and U.S.
The singer stayed faithful to the ballad's sparse, original instrumentation.
