That headline is not meant as a comment on how good Mick Jagger is at being a grandfather, though I’m sure he’s fine. Rather, it means that the 70-year-old Rolling Stones frontman has now lived long enough to see his kids’ kids have kids. The Daily Mail reports that Jagger’s granddaughter Assisi just gave birth to a baby girl. Assisi is the daughter of Jade, Jagger’s daughter with his ex-wife Bianca. I don’t know if this is another sign of rock music’s increasing convalescence or if it’s just another sign that we’re all getting older. Either way, congratulations to the Jagger family.