Gwen Stefani and her three sons are grateful for Blake Shelton's presence in their lives.

Stefani, 50, has three sons—Kingston, 14, Zuma, 11, and Apollo, 6—from her previous marriage to Gavin Rossdale. But she's making it known that boyfriend of nearly five years Blake Shelton deserves praise for his role as a parent to her boys.

"happy father’s day @blakeshelton thank u for helping me raise these boys!! #weloveyou! G❤️K❤️Z❤️A gx," Stefani wrote on Instagram.

The post was accompanied by a set of pictures showing Shelton enthusiastically caught up in various activities with the boys.

Gwen Stefani's Father's Day tribute to Blake Shelton

Shelton was married on two previous occasions, but he didn't welcome children of his own in those relationships. He and Stefani have been together since 2015 after meeting on The Voice.

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Stefani, the No Doubt lead vocalist, also honoured her own father, Dennis, on Father's Day Sunday. In Instagram post, Gwen's "poppie" is seen posing with her, Blake, and his grandchildren.

Blake Shelton hit age 44 earlier this week

Country music star Blake Shelton also just celebrated his 44th birthday on Thursday, when Stefani thanked him for being her "best friend" alongside a loving selfie.

RELATED: Gwen Stefani Shares Selfie With "Best Friend" Blake Shelton On His Birthday

Happy Father's Day and birthday week to Blake, Dennis, and the happy family!