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 midseason 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.