Brad Pitt carries his son Maddox as Angelina Jolie carries her daughter Zahara during their stroll outside their hotel in Mumbai November 12, 2006.

Brad Pitt arrives with his children Maddox (L) and Pax at the airport in Venice August 26, 2008.

Madonna (L) and ex-husband Guy Ritchie (2nd L) stand with their children Rocco and Lourdes (R) as they attend the premiere of the film "Arthur and the Invisibles" in Leicester Square, London, January 25, 2007.

David Beckham (L) and his son Brooklyn watch Game 5 of the NBA Finals championship between the Boston Celtics and the Los Angeles Lakers in Los Angeles, June 15, 2008.

David Beckham watches the Los Angeles Lakers play the Toronto Raptors in their NBA game with his sons (L-R) Romeo, Brooklyn and Cruz in Los Angeles November 30, 2008.

Katie Holmes (L) walks with her husband Tom Cruise and their daughter Suri after Holmes finished the 2007 New York City Marathon in New York November 4, 2007.

Tom Cruise holds his daughter Suri as he arrives with Katie Holmes (R) at a restaurant in Rome November 16, 2006.

(L-R) Country music singer Tim McGraw and family members, mother Betty Trimble, wife/singer Faith Hill, daughter Audrey Caroline and McGraw's sister Sandy watch during ceremonies to unveil his star on the Hollywood Walk of Fame in Hollywood October 17, 2006.

Faith Hill carries daughter Audrey Caroline and holds the hand of daughter Maggie Elizabeth as they leave a ceremony honoring her husband Tim McGraw, after his star was unveiled on the Hollywood Walk of Fame in Hollywood October 17, 2006.

Britney Spears and Kevin Federline arrive for the 2004 Billboard Music Awards in Las Vegas, Nevada, December 8, 2004.

Jayden James Federline cries before his mother, Britney Spears, performs on ABC's "Good Morning America" in New York December 2, 2008.

Gwyneth Paltrow holds her baby Apple upon her arrival at the Elysee Palace September 5, 2004 for a ceremony to award director Steven Spielberg Chevalier de la Legion d'honneur by French President Jacques Chirac.

Actress Cate Blanchett and her husband Andrew Upton talk about her pregnancy to journalists upon arrival for the Sydney Theatre Awards at the Paddington RSL Club in Sydney January 21, 2008.

Andrew Upton holds his baby Ignatius Upton while he waits for his wife Cate Blanchett who attended a Creative Session of 'Australia 2020 Summit' in Canberra April 19, 2008.

Melissa Joan Hart (R) along with husband Mark Wilkerson and son Mason arrive at the premiere of ''Meet The Robinsons'' in Hollywood March 25, 2007.

Billy Ray Cyrus and his daughter Miley Cyrus arrive at the 2006 American Music Awards in Los Angeles, November 21, 2006.

Cast member Rumer Willis (2nd L) poses with her mother, Demi Moore (L), her sister Lula Willis and her father, Bruce Willis (R), at the premiere of "The House Bunny" in Los Angeles August 20, 2008.

Cast member Rumer Willis (3rd from R) of the comedy film "The House Bunny" poses with her boyfriend Micah Alberti, her mother Demi Moore, Ashton Kutcher (L) and her father Bruce Willis (R) with his girlfriend Emma Heming at the film's premiere in Los Angeles August 20, 2008.

Gavin Rossdale and his wife Gwen Stefani, pregnant with their first child, pose as they arrive at the 48th annual Grammy Awards in Los Angeles February 8, 2006.

Nicole Kidman and her husband Keith Urban, pose as they arrive at the 43rd Annual Academy of Country Music Awards show in Las Vegas, Nevada, May 18, 2008.

Ashlee Simpson, pregnant with her first child, arrives at the 2008 MTV Video Music Awards in Los Angeles September 7, 2008.

Amy Poehler and her husband Will Arnett pose backstage at the 60th annual Primetime Emmy Awards in Los Angeles September 21, 2008.

Minnie Driver poses at the movie premiere of "Hancock" at Grauman's Chinese theatre in Hollywood, California June 30, 2008.

Jessica Alba sits with Cash Warren at Game 4 of the NBA Western Conference quarterfinal playoff game between the Golden State Warriors and Dallas Mavericks in Oakland, California April 29, 2007.

Jennifer Lopez arrives at a reception to benefit UNICEF hosted by Gucci and Madonna at the United Nations headquarters in New York February 6, 2008.