Trace Cyrus is doubling down on his concerns about his father Billy Ray Cyrus, whom he alleges threatened him with legal action after a public plea.

Billy Ray Cyrus seemingly addressed son Trace Cyrus’ public concerns for him amid an apparent rift in their family, which also includes Miley Cyrus and Noah Cyrus.

Trace Cyrus penned a letter on Instagram to Billy Ray Cyrus saying he and his sisters are worried about their father.

"You should be ashamed of yourself," Trace wrote publicly on Saturday, two days after saying he's "genuinely worried" about the country star's well-being.

Billy Ray Cyrus' son is sharing concern for his father's well-being. In an Instagram post Wednesday, Trace Cyrus, the 35-year-old brother of Miley Cyrus and son of Billy Ray Cyrus, wrote a message addressed to his dad and said that he is worried about him.

Trace Cyrus wrote an open letter to his dad Billy Ray Cyrus on Instagram saying he "barely" recognizes the man he once idolized.

Trace Cyrus told his dad Billy Ray Cyrus and younger brother Braison Cyrus to "man up" and get "healthy" following Billy Ray's eyebrow-raising performance at Donald Trump's Liberty Ball.

Billy Ray has now posted a short video to YouTube from his 2008 track “Somebody Say a Prayer”, along with a caption that seemed to address his family strife. “Sunday callin,” he wrote. “Giving thanks for the California rain. Praying for the brokenhearted and their pain. Praying for my family. For my children… sons and daughters… and their mother.

Billy Ray Cyrus' son Trace says he and sisters Miley and Noah are 'genuinely worried' for their country singer dad. 'You've pushed all of us away,' he writes.

Trace, who is sober, penned a lengthy open letter last week revealing that he and his loved ones are “genuinely worried” about the country star.

Billy Ray Cyrus seemingly addressed son Trace Cyrus’ public concerns for him amid an apparent rift in their family, which also includes Miley Cyrus and Noah Cyrus.