WireImage 1 / 6

Mick Jagger has become a grandfather again -- his designer daughter, Jade, has given birth to a baby boy.

It's Jade's first child with husband Adrian Fillary, her third overall, and the Rolling Stones star's fifth grandkid.

The birth comes just weeks after 42-year-old Jagger's 21-year-old daughter gave birth to her first child at the end of April, making the "Start Me Up" singer a first-time great-grandfather.

Jade, who is one of Mick Jagger's seven kids, also has a 17-year-old named Amba.

She and Fillary wed in 2012.