Ever wondered where celebs like Brooke Shields and Sarah Jessica Parker got their start before they hit it big in Hollywood?

NBC's new series Who Do You Think You Are? traces the ancestry of these stars and others in episodes that find the celebs traveling the world in search of their family's heritage.

This season, Sex and the City star Sarah Jessica Parker learns she has a relative connected to the California Gold Rush. "It's changed everything about who I thought I was," Parker says of exploring her family's past. Shields and Parker's husband Matthew Broderick will join Lisa Kudrow, Spike Lee, Susan Sarandon and Emmitt Smith will also appear on future episodes, airing every Friday at 8 p.m./ET.

Ahead of the show's March 5 premiere, UsMagazine.com's Who Do You Think You Are? quiz tests your knowledge of the beginnings of Parker and other celebs.

Take the quiz here to find out the family ties of your favorite stars!