John Travolta, overcome with emotion, makes the announcement.

John Travolta is among the celebrities mourning the death of Emmy-winning actress Kirstie Alley, who passed on Monday after a short battle with cancer.

On Instagram, Travolta characterized his frequent co-star Kirstie as “one of the most special relationships I’ve ever had.” “Kirstie, you are valued. I’m confident we’ll cross paths again.”

In Amy Heckerling’s 1989 comedy Look Who’s Talking, about a single mother who meets and falls in love with a cab driver (Travolta), Bruce Willis performed the voice of the child they raised together.

Travolta’s career was revitalized due to the film’s unexpected success, and Alley’s shift from Cheers’ sitcom star to cinematic star was made possible. It spawned the short-lived sitcom Baby Talk, which starred Tony Danza as the baby’s voice, and two sequels, Look Who’s Talking Too and Look Who’s Talking Now.

Travolta has also appeared in TV Land sitcoms Kirstie Alley’s Big Life (2010), Fat Actress (2005), and Kirstie (2005), all starring Alley.

True and Lillie Parker, Alley’s daughters, wrote on her social media pages, “We are heartbroken to inform you that our great, strong, and loving mother has passed away after a battle with cancer.”

“She was surrounded by her closest relatives and fought valiantly, leaving us with no doubt about her never-ending love of life and whatever adventures lay ahead,” according to the statement. “She was a wonderful actress and a kind mother and grandmother.”

Alley said of her longtime friend Travolta on Celebrity Big Brother U.K. in 2018, “I almost ran away and married John. I adored him, and I still do. If I hadn’t already been married, I would have traveled to marry him.”

Following the passing of his Grease co-star Olivia Newton-John in August, Travolta has had to write a tribute to one of his leading ladies again this year.

“You made all of our lives so much better, my beautiful Olivia,” Travolta said of Newton-John, who died of cancer. “You were all mine from the moment I saw you.”