Rolling Stones frontman Mick Jagger is going to be a great-grandfather at the age of 70, according to media reports. The rocker's 21-year-old granddaughter, Assisi Jackson, is reportedly pregnant with her chef boyfriend's child, due in 2014. Jagger already has seven children (ranging in age from 14 to 42), and two other grandchildren. As you might expect, the legend shows no signs of slowing down.