A Cinderella Story: Once Upon a Song | “Knockin“ Song | Warner Bros. Entertainment

Check out Luke (Freddie Stroma) singing “Knockin“ in the all new movie “A Cinderella Story: Once Upon A Song“. Catch this song and more on the upcoming A Cinderella Story: Once Upon a Song soundtrack. A Cinderella Story: Once Upon A Song, starring Lucy Hale (TV’s “Pretty Little Liars“) and Freddie Stroma (the Harry Potter franchise), comes to DVD and For Download on September 6, 2011 from Warner Home Entertainment Group. Connect with Warner Bros. Entertainment Online: Follow Warner Bros. Entertainment INSTAGRAM: Like Warner Bros. Entertainment on FACEBOOK: Follow Warner Bros. Entertainment TWITTER: At Warner Bros. Entertainment, we believe in the power of story. From classics to contemporary masterpieces, explore and watch a library full of extraordinary, stirring, and provocative entertainment that goes beyond the big screen. Subscribe to discover new favorites from the studio that brought you Friends, JOKER, the Conjuring Universe, and The Wizarding World of Harry Potter™. A Cinderella Story: Once Upon a Song | “Knockin“ Song | Warner Bros. Entertainment Warner Bros. Entertainment