Radio Rebel (movie, 2012)

High school senior Tara is so painfully shy that she dreads speaking to anyone in the hallways or getting called on in class. But in the privacy of her bedroom with her iPod in hand, she rocks out -- doing mock broadcasts for Miami's hottest FM radio station, which happens to be owned by her stepfather. When a slot opens up at The SLAM, Tara surprises herself by blossoming behind the mike into confident, "Radio Rebel" -- and to everyone's shock, she's a hit!