When "Who Do You Think You Are?" returns on Tuesday, Feb. 24 at 10/9c, celebrities will discover life-altering truths about their ancestors.

Lisa Kudrow visits The Talk to promote the newest season of "Who Do You Think You Are?" and announce that Talk host Julie Chen will appear on the show!

Julie Chen never knew her maternal grandfather; he died long before Julie was born. All she had heard was that he was a wealthy playboy with a rags-to-riches story.

As award-winning singer Josh Groban digs into his eight times great-grandfather's successful life in Germany, he has an uneasy feeling. Why did he give it all up?

WHO DO YOU THINK YOU ARE? returns this spring to give eight new celebrities a unique opportunity to dig into their roots and learn more about their family history. New episodes begin Sunday, March 8 at 10/9c.

Get to know Dan Bucatinsky, Executive Producer of "Who Do You Think You Are?" In this video, the actor, author, dad and TV fanatic answers questions about his life and career.

Actor/Producer Sean Hayes searches for the cause of his estranged father's troubled past and uncovers a shocking trail of tragedy and crime that reaches back generations.

America Ferrera searches for a connection to a father she barely knew, and discovers a great grandfather who led multiple revolts against the government and left an enduring mark on Honduran history.

When Julie Chen visits her great-grandfather's grave and notices the beautiful view it commands, a historian explains that graves were ordered by principles of feng shui.

Melissa Etheridge digs into her French roots and finds a family shaken by a scandalous lawsuit; a turbulent relationship entangled with tragedy; and an adventuresome ancestor who prospered in colonial America.

America Ferrera and her sister look at old family photos and share memories of their dad, who left when she was just eight.

Tony Goldwyn's 3 times great-grandparents were political activists behind the Seduction Act. He learns why this legislation was so important to them.

Beyond a family of Hollywood legends, actor/director Tony Goldwyn explores his maternal lineage. He is introduced to a heritage of political activism; a couple ahead of their time proudly fighting for abolition, women's rights and westward expansion.

Josh Groban studies a record book of his eight times great-grandfather's academic career and has fun making a few assumptions about the man's character and style.

Angie learns that her ancestor Michael Harmon reported to one of George Washington's toughest generals. That said, Michael's promotion to corporal was a pretty big deal!

With her distant relative and a translator, Julie Chen visits the house owned by her great-grandfather and sees the place where her grandfather was born.

In this episode recap, country music superstar Trisha Yearwood discovers the surprising reason why her distant relative Samuel Winslett came to America.

Aisha Tyler's journey reveals an ancestor who, as a politician, struggled to keep his illegitimate son a secret.

Tracing his patriotic roots, Scott Foley finds a relative who risked his life for one of America's founding fathers, and an ancestor who suffered unspeakably during one of this nation's darkest times.

Get a first look at Jennifer Grey’s journey on Who Do You Think You Are?

In this episode recap, actress Cynthia Nixon processes shock, grief, then pride as she learns of her ancestor's surprising role in prison reform.

In this episode recap, actor Jesse Tyler Ferguson is bitterly disappointed to learn his great-grandfather was a hustler. He travels to the Klondike to find out if his last great business risk paid off -- and restored his name.

Jennifer Grey discovers her grandfather was a conscientious objector.

Aisha Tyler learns more details about the time in which her 2x great grandfather lived from an 1865 Galveston, Texas newspaper.

Aisha Tyler learns more about her great grandfather Hugh Hancock from an old newspaper article.

Jennifer Grey’s ancestors travel to the U.S.

In this episode recap, actress Rachel McAdams and her sister Kayleen trace their mother's side of the family tree to discover two fascinating relatives: a Victorian footman in England and Revolutionary loyalist in the American colonies.

Jennifer Grey explains how she remembers her grandfather

Julie Chen studies a map with a historian to understand how complex her grandfather's mission was when he began shipping supplies to help China during World War II.

When Julie Chen visits her great-grandfather's grave and notices the beautiful view it commands, a historian explains that graves were ordered by principles of feng shui.

With her distant relative and a translator, Julie Chen visits the house owned by her great-grandfather and sees the place where her grandfather was born.

Scott Foley visits George Washington's HQ in Cambridge.