Her name is Kate Voegele, and, wow, you have to listen to her sing. The 21-year-old Miami of Ohio student appeared on “One Tree Hill,” on Tuesday night, playing Mia, a shy singer in K-Fed’s band. When Haley and Peyton heard her amazing voice, it was goodbye K-Fed, hello Mia. Voegele, who is scheduled for six episodes, dazzled on “Kindly Unspoken,” from her debut album “Don’t Look Away” (MySpace Records). Voegele plays piano and guitar, writes strong lyrics and sings with power and energy. She’s going to be a star.