Celebrities who were adopted: Simone Biles, Marilyn Monroe, more

Rachel Crow

"X-Factor" star Rachel Crow was adopted as an infant after being placed in foster care. Her adoptive mother told People magazine that Crow was born "a crack baby" saying she "went through withdrawals and everything."

Gary Coleman

Gary Coleman was adopted as an infant by W.G. Coleman, a fork-lift operator, and Edmonia Sue, a nurse practitioner.

Nicole Richie

Reality star-turned fashion designer Nicole Richie's biological parents were friends of singer Lionel Richie. For financial reasons, they sent her to live with Richie and his wife, Brenda Harvey, when Nicole was 3. The couple legally adopted her six years later.

Faith Hill

Country singer Faith Hill was adopted as an infant by Edna and Ted Perry who raised her alongside their biological sons.

Marilyn Monroe

Marilyn Monroe was born Norma Jeane Mortensen to a mentally unstable mother and absent father. She spent most of her childhood in foster homes and orphanages until she married for the first time at 16.

Keegan-Michael Key

Comedian Keegan-Michael Key was adopted as a child by two social workers, Patricia Walsh and Michael Key.

Nicole 'Snooki' Polizzi

"Jersey Shore" star Snooki was born in Santiago, Chile. As an infant she was adopted by an Italian-American couple, Andy and Helen Polizzi, and raised in New York.

Jamie Foxx

Jamie Foxx was adopted as an infant by his mother's own adoptive parents, Esther and Mark Talley.

Ray Liotta

Ray Liotta was adopted as a toddler by Mary and Alfred Liotta. In the 2000's, he located and met his biological mother and siblings.

Michael Oher

Carolina Panthers offensive tackle Michael Oher was one of 12 children born to Denise Oher, who suffered from alcohol and drug addiction. His father was frequently in prison and he was left homeless or in foster care for most of his childhood. In 2004, Leigh Anne and Sean Tuohy took in the then-teenager, and eventually adopted him. His story was told in the 2009 movie, "The Blind Side."

Priscilla Presley

The actress and former wife of Elvis Presley was born to a U.S. Army lieutenant and his wife, James and Anne Wagner. Her father died in a plane crash when she was a baby and her mother remarried. Her step-father, Joseph Beaulieu, adopted her and she was not told about her birth father until she was a teenager.

JC Chasez

*NSYNC band member JC Chasez was raised by his biological mother's former foster parents, Roy and Karen Chasez. They officially adopted by him when he was 5.

Frances McDormand

"Fargo" actress Frances McDormand was born in Chicago and adopted by Canadian couple Noreen and Vernon McDormand as an infant.

Darryl 'D.M.C.' McDaniels

D.M.C. of hip-hop group Run-D.M.C. was born to an unwed mother who surrendered him to the New York Foundling home. He lived in foster care for most of his childhood until being placed with Banna and Byford McDaniels who later adopted him.

Skrillex

EDM DJ Skrillex found out at age 16 that he was adopted. He told Katie Couric in a 2015 interview that his biological mother was a friend of his adoptive parents and that he had not had contact with her in years.

Simone Biles

Simone Biles' maternal grandparents, Ron and Nellie Biles, adopted the Olympic gold medalist and her sister out of foster care.

John Lennon

John Lennon's parents split when he was 3. The Beatle's father, who served in the British Navy, went AWOL and his mother was unable to provide for him. At 5, he was adopted by his biological aunt and her husband.

Kristin Chenoweth

Tony-winning actress Kristin Chenoweth was adopted as an infant by Jerry and Junie Chenoweth. She later blogged about being adopted and thanked her birth mother, whom she's never met, for giving her up for adoption.

Sarah McLachlan

Sarah McLachlan was born in Nova Scotia, Canada, and was adopted by an American couple living in Canada, Jack and Dorice McLachlan.

Steve Jobs

Apple co-founder Steve Jobs was born to Abdulfattah "John" Jandali, a Syrian immigrant, and Joanne Schieble. According to Walter Isaacson's authorized "Steve Jobs" biography (2011), Jobs' biological mother's father forbid their marriage, and the couple gave Jobs up for adoption. They later married and had a daughter, while Paul and Clara Jobs legally adopted Steve Jobs in 1955.

Melissa Gilbert

"Little House on the Prairie" actress Melissa Gilbert was born in to David Darlington and Kathy Wood. At 1 day old, Gilbert was adopted by by actor and comedian Paul Gilbert and his wife, Barbara Crane, the daughter of "The Honeymooners" creator Harry Crane.

Jack Nicholson

Three-time Oscar winner Jack Nicholson's mother was raised by his grandparents and grew up believing his young mother was his sister. He learned the truth at age 37, when a Time magazine researcher uncovered the story.

Nancy Reagan

Former first lady Nancy Reagan was born to Edith Luckett and Kenneth Robbins. After her parents divorced, her mother pursued acting and sent Reagan to live with her aunt, Virginia Luckett. After returning to live with her mother, she was formally adopted by her stepfather, Loyal Davis, and legally adopted his surname.

Kristin Davis

Following her parents' divorce when she was a baby, "Sex and the City" actress Kristin Davis was raised by a single mother until age 3, when her stepfather, Keith Davis, adopted her and she and took on his last name.