LONDON: Mick Jagger is to become a great grandfather. The legendary rocker will get the title in 2014 when his daughter Jade’s eldest girl Assisi is expected to give birth to her first child, and he has said to have joked the future baby could have one of their own before he retires.  An insider told the Daily Mirror newspaper: ‘’She and Alex are thrilled and broke the news to their immediate families last week.  ‘’Jade was a little taken aback at first, not least because it means she will be a grandmother by the age of 42. She’s expecting some ribbing from her showbiz pals.–XP