Avett Brothers bassist Bob Crawford, who’s daughter Hallie is currently suffering from a brain tumor, has released a new song with his side project Overmountain Men to raise funds for Hallie’s recovery. Those who donate will receive a free download of the new song “Halls of Glory.” See here for details on how to donate.

Hallie Crawford’s medical issues were revealed in a statement posted to the Avett Brothers’ website last fall. In the statement, Crawford writes, “This is a very rare, but deadly brain tumor that effects roughly 100 children a year in the United States. We do not know what Hallie’s next step is in her treatment. Her situation is very fluid and there are a number of complicating factors, but we do know that she is fighting hard every day.”

Crawford is currently off the road and has not performed with the Avetts since making the announcement regarding his daughter’s health.