Early life

Cavallari was born in Denver, Colorado, one of two children of Judith Eifrig and Dennis Cavallari. She is of German and Italian descent.

Media career

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 she would be joining the cast of Laguna Beach's spin-off series, The Hills. She made her first appearance on the series during the fifth season's mid-season finale on May 31, 2009, at Heidi Montag and Spencer Pratt's wedding, where she caught the bouquet. The second half of the season premiered on September 29, 2009, with Cavallari assuming the position of former main cast member and narrator Conrad. Despite originally signing a deal with MTV to appear in two additional seasons following the fifth, the sixth and final season concluded on July 13, 2010.

Cavallari was on the 13th season of ABC's Dancing with the Stars and partnered with two-time champion, Mark Ballas. She was the third to be eliminated.

After Laguna Beach, Cavallari headed to Los Angeles and signed on the UPN reality television series Get This Party Started, which premiered February 7, 2006. The series was canceled after airing two episodes. She appeared on one episode of another UPN series, Veronica Mars, and went on to guest roles on series including CSI: NY, Cane and Adventures in Hollyhood. In 2006, she signed on as Crystal in the horror film Fingerprints.

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.

Charity work and public image

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. In March 2011, Cavallari traveled to Kenya to do charity work with the non-profit organization One Kid One World.

In March 2014, Cavallari drew national criticism for refusing to vaccinate her children, a decision she and her husband, Jay Cutler based on fears of a connection between childhood vaccination and autism.

Personal life

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

As a high school senior in the winter of 2004/05, Cavallari dated quarterback Matt Leinart, who at the time was attending the University of Southern California. She can be seen referring to Leinart in early episodes of Laguna Beach: The Real Orange County's second season.

Cavallari began dating Chicago Bears quarterback Jay Cutler in late 2010, and became engaged to him in April 2011. They called off the engagement in July 2011, but reconciled in November 2011. Cavallari and Cutler wed on June 8, 2013, in Nashville, Tennessee. They have three children: sons Camden (born 8 August 2012), and Jaxon (born 7 May 2014) and daughter Saylor (born 23 November 2015). Their children are unvaccinated.

Her brother, Michael Cavallari, was found dead on December 10, 2015.

Filmography

As actress

Year	Title	Role	Notes
2006	Veronica Mars	Kylie Marker	Episode: "Versatile Toppings"
2006	Fingerprints	Crystal	Main Role
2007	Cheerleader Camp	Julie	Television movie
2007	Cane	Casey	Episode: "Family Business"
2008	Green Flash aka Beach Kings	Lana	Direct-to-DVD release
2008	CSI: NY	Isabelle Vaughn	Episode: "Forbidden Fruit"
2008	Spring Breakdown	Lizzie - Seven #3
2009	Wild Cherry	Trish van Doren
2009	National Lampoon's Van Wilder: Freshman Year	Kaitlin Hayes	Direct-to-DVD release
2011	The Middle	Ms. Devereaux	Episode: "Friends, Lies, and Videotape"

As herself

Year	Title	Notes
2004-05	Laguna Beach: The Real Orange County	28 episodes
2006	Get This Party Started	Host; 2 episodes
2009-10	The Hills	23 episodes
2011	RuPaul's Drag Race	Season 3
2011	America's Next Top Model	Guest Judge; Season 17, Episode 3
2011	Dancing with the Stars	Season 13, Eliminated week 3
2012	Cupcake Wars	Guest Judge; Season 6, Episode 9: "Kristin Cavallari's Baby Shower"
2012-13	The League	2 episodes

[ Source: Wikipedia ]