He's a great-grandfather at 70!

Mick Jagger's granddaughter, Assisi Jackson, gave birth to a baby girl over the weekend, according to the Daily Mail. This is the first child for the 21-year-old and her boyfriend, Alex Kay, 25.

The Rolling Stones frontman has a total of seven children with four different women, and four grandchildren.

In a strange turn of events, Assisi's 42-year-old mother, Jade Jagger, is currently pregnant with her third child, therefore welcoming a grandchild and child within the same year.

assisi jackson

Assisi Jackson with mother Jade Jagger

"The women in our family just tend to have children young, it runs in the genes," Assisi previously told Hello! magazine, also referring to mom Jade who had her at 21.

The happy news comes two months after the untimely death of Mick's longtime girlfriend L'Wren Scott.

"I am still struggling to understand how my lover and best friend could end her life in this tragic way," Mick wrote of her suicide at the time. "We spent many wonderful years together and had made a great life for ourselves."

In exactly one week, the Rolling Stones are set to resume their previously postponed tour after grieving the loss of L'Wren.