Miley infamously won her first two Grammys last year for her hit song “Flowers.” She attended Sunday night’s ceremony with her mom, Tish Cyrus, and her boyfriend, Maxx Morando, and presented the award for Record of the Year.

Everyone picked sides when Tish Cyrus and Billy Ray Cyrus got divorced, no one is talking to each other, and now Trace Cyrus has posted an open letter to his dad on Instagram, writing that his dad isn’t “healthy” and his family is “worried” about him.

After marrying Tish Cyrus in 1993, Billy Ray adopted her two children from a previous marriage, Brandi and Trace. Together, the duo gave birth to three additional kids: Miley, Braison, and Noah. The country star also has a son, Christopher Cody, from a previous relationship of his own, who he welcomed shortly before Miley was born.