Charlie's moment to shine has arrived: She's determined to land a solo in this year's holiday concert. With her best friend, Renee, and smart, cute Eric in chorus with her, this winter promises to be pitch-perfect. Until disaster strikes. The concert is suddenly in danger of being canceled. And Charlie has to partner up with annoying, oh-so-perfect Matthew. If they can't work in harmony, Charlie's favorite time of year will be ruined. Will she be able to save the show from a blizzard of problems — and figure out who makes her heart sing?