NME.com has put together a list of 25 Grandparents Who Still Rock.  Here's the list, along with how many grandchildren they have, according to the site:

1.  B.B. King, who's 88 . . . He's rumored to have 50 grandchildren and between eight and 10 great-grandchildren.

2.  Bob Dylan, who's 72 . . . He has nine grandchildren, including 18-year-old rapper, Pablo Dylan.

3.  Bob Geldof, who's 62 . . . He has a grandson.

4.  James Taylor, who's 65 . . . He has a grandson.

5.  Jimmy Page of Led Zeppelin, who's 69 . . . He has a granddaughter.

6.  Joe Perry of Aerosmith, who's 63 . . . He has a grandson.

7.  John "Johnny Rotten" Lydon, who's 57 . . . He has two grandkids.

8.  Led Zeppelin bassist John Paul Jones, who's 67 . . . He has three grandkids.

9.  Joni Mitchell, who's 69 . . . She has two grandkids from her daughter Kelly, who she gave up for adoption back when she was 20.

10.  Keith Richards, who's 69 . . . He has four grandchildren.

11.  Lionel Richie, who's 64 . . . He has two grandchildren.

12.  Mick Jagger, who's 70 . . . He has four grandchildren, and a great-grandkid on the way.

13.  Meat Loaf, who's 66 . . . He has one grandkid.

14.  Neil Diamond, who's 72 . . . He has seven grandchildren.

15.  Late '80s Swedish rapper Neneh Cherry, who's 49 . . . She's got one grandchild.

16.  Ozzy Osbourne, who's 64 . . . He has five grandchildren.

17.  Paul McCartney, who's 71 . . . He has six grandchildren.

18.  Rev Run of Run-D.M.C., who's 48 . . . His first grandchild is on the way.

19.  Ringo Starr, who's 73 . . . He has two grandkids.

20.  Robert Plant of Led Zeppelin, who's 65 . . . He has five grandchildren.

21.  Rod Stewart, who's 68 . . . He just became a grandfather last year.

22.  Ronnie Wood, who's 66 . . . He has two grandkids.

23.  Roger Daltrey from The Who, who's 69 . . . He has 10 grandkids.

24.  Steven Tyler, who's 65 . . . He has one grandkid.

25.  Tina Turner, who's 73 . . . She has two grandchildren.

(NME.com)