Cassie Montez: teenage 19 year old popstar in LA best mates with The Kardashians, they treat eachother like family. They are like Queens whenever their together. So what happens if Harry Styles - which turns out to be Kendall's new boyfriend comes back into her life? her childhood best friend and bully. Will Cassie treat him like family and forget about the past or will she despise him for the rest of her life and make his life living hell? But not only is she best friends with the Kardashians, she is also close with 5 Seconds Of Summer, Ed Sheeran, Olly Murs, Bruno Mars, Nick Graham you name it! Will Cassie take all the drama? What will Harry think when he sees Cassie again? Find out in ' Remember Me '