Dear Diary, This totally hip girl, Erin, just joined our band at camp. She is so cool, and we really hit it off. But Erin and my best friend, Phoebe, HATE each other. What a rock n' roll mess! -- Ashley Dear Diary, One the girls in my band, Lark, has a big secret. And I know what it is -- Lark's dad is actually a huge rock n' roll star. So what is Lark doing here? I wonder. She doesn't need this camp to learn about music. Maybe Lark has another secret ... -- Mary-Kate