To answer your question directly: the pop star character that Jessica writes to in the Hallmark movie Write Before Christmas is a fictional aging pop star who was part of the soundtrack of Jessica’s life. In the film, Jessica sends five Christmas cards to people who have impacted her life, including this pop star, but the movie does not name the pop star as a real-world public figure. If you’d like, I can pull exact character names from a reliable database or recap to confirm any other details.
