His daughter Jade told The Sunday Times that her 21-year-old daughter, Assisi, expects to give birth in several months.
She tells the newspaper she does not expect Jagger to slow down now that he's set to become a great-grandfather. The ever-popular Stones plan to tour Australia next year.
Assisi tells Hello! magazine that Jagger was pleased when she told him the news.
She tells the magazine, "He said, 'Well done.'"
She says, "I imagine it's nice to be a great-granddad, although I'm not sure he likes the idea of getting old, or being called one. I call him Mick - I wouldn't start calling him grandpa."