Arizona educators first began planning the walkout in March, forming the #RedForEd movement on social media and asking teachers and their supporters to wear red in solidarity. TheArizona Daily Star Amber posted a photo of the sweet letter on Instagram, along with her own heartfelt shoutout to HRC. Now, with numerous other singles to her name, including the newly released “Bellyache” (more on it below), and both an album and an EP in the works, it's clear that the 15-year-old vocalist belongs in the spotlight. Don't miss her headlining tour, which she'll be embarking on this year. It's going to be a family affair, with brother Finneas along for the ride to provide sonic support.Teen Vogue: were among the winners at this year's Webby Awards. [Rolling Stone]Taylor Swift