Jim Carrey is going to be a grandfather. Carrey's spokeswoman, Marleah Leslie, says his 21-year-old daughter, Jane Carrey, is expecting her first child. The father is a rock musician Alex Santana. Leslie had no details on when the Los Angeles-based singer, who fronts the Jane Carrey Band, is expected to give birth. In a statement issued by Leslie, Jim Carrey says he's “very excited” and “Jane is going to be a great mom.” She is the 47-year-old actor's daughter with his first wife, Melissa. Carrey's longtime partner is Jenny McCarthy, who has a son, Evan, from a previous marriage.