Ashley Brinkman was lucky enough to chat with 'Riverdale' stars, KJ Apa and Luke Perry at the iHeart Radio Music Festival!! We absolutely love these two and were so excited to chat about season 3 of Riverdale. KJ Apa told us all about his relationship with on-screen dad, Luke Perry. He said he's more of a brother and real good friend. The two were pretty tight-lipped about season 3 but said if we thought season 2 was crazy, we should all get ready for season 3!! We learned that they were both excited to see JT perform, but if they saw him in the hallway they would just play it cool.