Basically, Liv needs a surgery on her voice and throat, which could potentially ruin her voice. She needs the surgery because she has used her voice so much that , as Dove Cameron says in an interview, it develops blisters. As Liv is struggling with this, her show is doing a live performance. She chooses to sing even though it might completely ruin her chances of keeping her voice. A "powerful" series finale. Will Liv lose her voice, or live on as a world wide phenomenon?
—Unknown