Jillian Michaels added an adopted daughter and a newborn son to her family in May 2012. "Adoption is a calling," Michaels told People <a href="http://celebritybabies.people.com/2012/05/24/jillian-michaels-adoption-is-a-calling/" target="external">magazine</a>. "There is something in you that can't be denied."
Cindy Ord/Getty Images
Brad Pitt, Angelina Jolie and their six children Maddox, Pax, Zahara, Shiloh, Knox, and Vivienne arrive at Haneda International Airport on Nov. 8, 2011 in Tokyo, Japan. The couple adopted Maddox, Pax and Zahara.
Jun Sato/WireImage/Getty Images
Jesus Luz holding Mercy James and Madonna with son David Banda are sighted on Aug. 17, 2009 in Portofino, Italy. The singer adopted the children from Malawi.
Felix Magno/FilmMagic/Getty Images
Actress Charlize Theron is pictured here with baby Jackson. "Charlize Theron has adopted a child. She is the proud mom of a healthy baby boy named Jackson," a representative for Theron told <a href="http://www.usmagazine.com/celebrity-moms/news/charlize-theron-adopts-baby-boy-jackson-2012143" target="external">Us Weekly</a> in March 2012.
Actress Sandra Bullock and son Louis Bullock are seen on the streets of Manhattan on March 20, 2011 in New York City. "He's just perfect, I can't even describe him any other way," Bullock told <a href="http://www.people.com/people/package/article/0,,20364464_20364639,00.html" target="external">People magazine</a> in 2010.
Marcel Thomas/Getty Images
Nicole Kidman and her children Connor, left, and Isabella attend a game between the Los Angeles Lakers and the Miami Heat at the Staples Center on Dec. 25, 2004. She adopted Connor and Isabella with her now ex-husband Tom Cruise.
Matthew Simmons/Getty Images
Katherine Heigl and her husband Josh Kelley, along with their adopted daughter Nancy Leigh Kelly, are seen leaving the Bungalow restaurant. The couple adopted their daughter from South Korea in 2009.
Densie Richards feeds newborn baby Eloise before an appearance on Good Day New York on July 27, 2011. "Eloise Joni Richards is named after Denise's mom (Joni), and Denise and her daughters Sami and Lola chose the name Eloise," her rep told <a href="http://www.people.com/people/article/0,,20507707,00.html" target="external">People magazine</a> in 2011.
Sharon Stone and children arrive at the 21st Annual A Time For Heroes Celebrity Picnic sponsored by Disney to benefit The Elizabeth Glaser Pediatric AIDS Foundation on June 13, 2010. The actress adopted Roan, Laird and Quinn.
Gregg DeGuire/FilmMagic/Getty Images
Sheryl Crow and son Wyatt arrive at the World Premiere of Disney Pixar's "Cars 2" at the El Capitan Theatre on June 18, 2011. The singer has two adopted children.
Gregg DeGuire/PictureGroup/Getty Images
Rosie O'Donnell and children attend the after party for the opening night of "Love, Loss and What I Wore" at Bryant Park Grill on Oct. 1, 2009 in New York City. The tv personality has adopted three children -- Parker, Chelsea and Blake.
Bennett Raglin/WireImage/Getty Images