Selena Gomez has spent most of her life in the spotlight, as one of the world’s biggest popstars and actors. After facing physical and mental health challenges, Gomez is stepping into what she considers to be her true calling, mental health advocacy. She’s partnering with Surgeon General Dr. Vivek Murthy to change the conversation around mental health, and to help youth struggling with the same challenges she’s faced. Hoda Kotb sat down with Gomez and Dr. Murthy for a candid conversation about their mission, the importance of mental health advocacy and where Gomez is on her health journey today.