"Kristin Cavallari"

Kristin Elizabeth Cavallari (born January 5, 1987) is an American television personality and actress. She is best known for her starring roles on the former MTV reality television programs Laguna Beach: The Real Orange County and its spin-off, The Hills.

Cavallari was born in Denver, Colorado, the second of two children of Judith Spies (née Eifrig) and Dennis Cavallari.

When her mother divorced her father, her older brother, Mike, moved with their father to Laguna Beach, California, while she moved with her mother to the village of Barrington, Illinois, a suburb an hour northwest of Chicago. She attended Barrington Station Middle School, and graduated on to Barrington High School. After difficulties adjusting to a new life with a stepfather and stepbrother, Cavallari moved to California to live with her father. There, Cavallari was enrolled at Santa Margarita Catholic High School for her sophomore year. After she attended a Driver's Education course through Laguna Beach High School, her father enrolled her in Laguna Beach High School.

Cavallari was in her junior year of high school when the first season of Laguna Beach: The Real Orange County began production. At the time, she was involved in an on-and-off relationship with senior Stephen Colletti. Cavallari's romance with Colletti caused a rivalry with another cast member, Lauren Conrad. The love triangle became one of the series' central plot lines.

In May 2009 Cavallari confirmed that she would be joining the cast of the popular MTV reality series The Hills. She appeared in the mid-season finale that aired on May 31, 2009, and appeared as a regular in the remainder of the fifth season. She inked a deal with MTV to appear as a series regular throughout two more seasons of the series following the fifth. The sixth and final season aired summer 2010.

Cavallari was on the 13th season of Dancing with the Stars and partnered with two-time champion, Mark Ballas. Despite having high scores, Cavallari was the third to be eliminated, shocking the audience, judges, and fellow dancers alike. One of the judges, Len Goodman, commented that he expected to see Cavallari dancing in the final. The cumulative average of Cavallari's dances were higher than of contestants who had lasted twice as long as she did.
Acting

After her stint on Laguna Beach, Cavallari headed to Los Angeles and briefly attended the Loyola Marymount University. She signed on the UPN reality television series Get This Party Started, which premiered February 7, 2006. The series was canceled after airing two episodes due to extremely low ratings. She guest starred on one episode of another UPN series, Veronica Mars. She has appeared in numerous television roles such as CSI: NY, Cane and Adventures in Hollyhood. In 2006, she signed on as Crystal in the horror film Fingerprints. She also played a small role in Wristcutters: A Love Story, an independent film, directed by Goran Dukic in 2006.

In 2008 she had a supporting role as Summer in Spring Breakdown alongside Amy Poehler. The film was released straight-to-DVD on June 2, 2009, and received mixed reviews. She also starred in the independent film Green Flash alongside Torrey DeVitto. In 2009 she starred in the independent American high school comedy film, Wild Cherry, as Trish, which also starred Rumer Willis. She also starred in the straight-to-DVD film, National Lampoon's Van Wilder: Freshman Year, as Kaitlyn. The film was released July 14, 2009, to mixed to negative reviews.

Sep 1, 2010 - Starred next to Jaron Lowenstein (Jaron and the Long Road to Love) in his Music Video, "Beautiful to Me."

Cavallari has been involved in the "Until There's a Cure", public service advertising campaign, to raise awareness and funds for AIDS and HIV research and vaccine development. In 2006 Cavallari appeared in ads for PETA, and has also appeared as a celebrity spokesperson for "We Are Ellis Island", a campaign for the restoration of Ellis Island. In February 2009 she posed for the NOH8 Campaign in support of gay marriage.

In January 2010 she traveled to El Salvador to do charity work. She told US Magazine, "It really put everything into perspective and made me appreciate everything I have, seeing how happy and excited the kids were was the best feeling in the world". In March 2011 Cavallari traveled to Kenya, Africa, to do charity work with the non-profit organization, One Kid One World.

Cavallari has previously dated her Laguna Beach: The Real Orange County co-star Stephen Colletti and her The Hills co-stars, Brody Jenner and Justin Brescia.

Cavallari began dating Chicago Bears quarterback Jay Cutler in the fall of 2010 and became engaged to him in April 2011. However, the couple split in July 2011 when Cutler called off the engagement. In November 2011, Cavallari confirmed reports that the couple was back together, tweeting, "This time it's official..Jay and I are engaged again". In January 2012, the couple announced that Cavallari is pregnant with their first child.

source : en.wikipedia.org