Nepotism is kind of a big deal in Hollywood. Children of major stars often become famous just for being, well, famous. Check out my slide quiz to see if you can guess these well-known celebrated actors and musicians who also happen to be grandparents to some of Tinseltown's most watched tots.

1 of 6

Which celebrity grandpa still likes to tear it up on stage?

2 of 6

A grandmother in real life, this woman also played one to darling baby Jack, or L.J., in a Ben Stiller comedy.

3 of 6

This crooner had a wild child who grew up and gave him a granddaughter to dote on.

4 of 6

Which grandma seems to have passed on her good looks and talents to her offspring?

5 of 6

Which grandpa often offers his estranged daughter and grandchildren well wishes from abroad?

6 of 6

This grandma recently welcomed a set of twins into her brood of grandchildren.