I think he’s ESI-N, so elevated Fi + Ti is what keeps him grounded in a chaotic pop star life. He talks about his faith and during all the time he was was touring ever since he was like 13, he went to church regularly and he’s said many times throughout various interviews that God, worship, and faith were his anchors. I haven’t seen any interviews with Hailey but she’s likely IJ too. She’s consistent with her style and manner of expressing herself similar to JB.