Harry Styles Mourns the Death of His Stepfather Robin Twist at 57

This video is unavailable because we were unable to load a message from our sponsors.

If you are using ad-blocking software, please disable it and reload the page.

It's a difficult time for Harry Styles and his family.

The 23-year-old singer's stepfather, Robin Twist, has died after a battle with cancer. He was 57 years old.

"Harry's step-father, Robin Twist, sadly passed away this week after a long battle with cancer. The family asks for privacy at this time," Styles' rep said in a statement to ET on Thursday.

NEWS: Harry Styles Doesn't Consider LGBTQ rights a 'Political' Issue -- 'Equality Feels Much More Fundamental'

Harry's mother, Anne Cox, married Twist in 2013, and Styles served as the best man at the ceremony. Earlier this month, Cox celebrated their four-year anniversary with a sweet selfie on Instagram.

Twist also had two children from previous relationships, Mike and Amy.

WATCH: Harry Styles Addresses Whether 'Two Ghosts' Is About Taylor Swift -- 'It's Pretty Self-Explanatory'

Styles' One Direction bandmate, Louis Tomlinson, also mourned the death of a loved one -- his mother, Johannah Deakin -- last December. Tomlinson opened up about his mother's death after a battle with leukemia in January, and recalled how she urged him to continue to pursue his music career after she was diagnosed with cancer.

Watch below:

Related Gallery