Billy Ray Cyrus is 'insecure' about his 'changed' voice, a source tells PEOPLE exclusively, adding that the country music star put himself in a 'vulnerable situation' when he performed at The Liberty Ball during President Donald Trump's inauguration on Jan.

The Cyrus family is rallying together in concern for Billy Ray Cyrus following his challenging performance at the Liberty Ball earlier this week. Alongside her siblings Trace and Miley Cyrus, Noah Cyrus has expressed her worries about the country music icon’s well-being.