Brian McKnight
Another popular fan theory is singer Brian McKnight. Not only does he have a similar voice, but the clues also match up. As one fan noted on Reddit, McKnight's singing career started when he joined the church choir where his grandfather was a pastor, which could be the pops reference of helping set him on the right path. The musicology and medicine signs could also be a reference to his wife Leilani Malia Mendoza, who is a pediatric neurophysiologist. To top it all off, McKnight has a son who is named after him, Brian McKnight Jr.
Image Source: Getty / Timothy Hiatt