Chase Matthew's bassist, Carsen Richards, was arrested after a concert on Saturday night, accused of sexually assaulting a 12-year-old autistic child.
Meghan Patrick is cancelling her remaining tour dates, starting with June's show, so she can focus on her pregnancy.
Morgan Wallen first met the family last summer when their 8-year-old son was diagnosed with an aggressive form of cancer.
Riley Green will join Season 30 of The Voice as a coach later this year.
