John recently paid tribute to the passing of his beloved co-star Olivia Newton-John.

Even on the days, he misses her the most, John Travolta will always pause to remember his late wife Kelly Preston.

The actor took a moment to honor the mother of his three children on what would have been the actress’ 60th birthday.

After a prolonged battle with breast cancer, the What a Girl Wants actress passed away on July 12, 2020, at the age of 57, in the couple’s Clearwater, Florida, home.

John has had an especially difficult month as he has mourned the passing of his co-star Olivia Newton John.

John posted a lovely flashback photo of the two at what appears to be a movie premiere or party on Instagram to wish Kelly a very happy birthday.

In the picture, they are securely clutched together. The actor is dressed in a black suit with leather lapels, and his wife is wearing a very stylish outfit.

Kelly can be seen beaming broadly while donning a black dress with white piping and cut-outs at the waist, pearl drop earrings, and voluminous beehive-styled blonde hair.

He gently wished his favorite dance partner a happy birthday in the caption. “Kelly, you are missed and loved.”

Soon after, admirers wished her a happy birthday in the comments section, writing: “Sweet photo!” and “Happy birthday in heaven Kelly, big hugs to you John, Ella, and Ben.”

Kelly’s birthday was wished for by one fan, who also added: “Happy beautiful birthday Kelly,” along with a plethora of heart and angel emojis.

Since Kelly’s passing, John has been more committed than ever to spending time with his children, Benjamin, 11, and Ella Bleu, 22, as well as encouraging them in their aspirations and interests.

He frequently provides insights into their daily lives by posting clips of Benjamin performing amazing gymnastics, praising Ella whenever she publishes new music or covers, and whisking them away on lavish trips.