The "Domino" hitmaker celebrated the "Magic Mike" star's 39th birthday on her Instagram Stories on Friday, April 29 with a sweet song, and an image of a woman saying, "I want you."
"It's your birthday, do, do what you want," Jessie sang off-camera in the clip while zooming in on the picture.
A man's voice, which fans have speculated is Channing, was heard laughing in the background.
The British singer later shared a cute photo of herself and the Hollywood hunk on her Instagram Stories.
Channing, who split from ex-wife Jenna Dewan last year, was much more eloquent when celebrating Jessie's 31st birthday in March.
"You came into this world on this day and lit it on fire. You have blessed our eyes, our ears, our hearts and our lives. So thank you for just being you. You are so very special. Happy birthday Baby," he captioned a black-and-white shot of the popstar on Instagram.
Jenna, meanwhile, went Instagram official with her boyfriend, Steve Kazee, earlier this week.
The 38-year-old actress and dancer - who shares five-year-old daughter Everly with her ex-husband - posted a snap of Steve sitting on a beach.
"It's kind of a combination of a lot of things," she told guest host John Cena of her journey to find happiness again. "It's no secret that I had a very intense year and a lot of change."