LONDON -- Rolling Stones frontman Mick Jagger is set to become a great-grandfather early next year.

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.

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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."

Jagger turned 70 in July.