'Panorama' artist Hayley Kiyoko is no stranger to the public eye ... but is she ready to show us her PHONE??! The *iconic* singer-songwriter stopped by for a game of Read Receipts, where she chose to either answer our juicy questions (ft. her grossest habit , biggest regret, and Google search history) OR show us all her secrets . Lucky for us, she didn't hold ANYTHING back! Watch MORE Read Receipts and see if your FAV celeb has shown their cellphone to Seventeen : https://www.youtube.com/watch?v=Uhn8qpGh6uU&list=PLunx6D_le-dK0S0Dbp6w_XnTTHvrUJtqv