Calabasas is an affluent city in Los Angeles County, California. It is located in the hills in the southwestern San Fernando Valley and the Santa Monica Mountains between Woodland Hills, Agoura Hills, West Hills, Hidden Hills and Malibu, California. As of the 2010 census, the city population was 23,058, up from 20,033 at the 2000 census, according to the U.S. Census Bureau website, factfinder.census.gov. The city was formally incorporated in 1991. Prior to that the area was an unincorporated portion of Los Angeles County.

The Leonis Adobe, an adobe structure in Old Town Calabasas, dates from 1844 and is one of the oldest buildings in the greater Los Angeles area.

It is generally accepted that Calabasas as the city name is derived from the Spanish calabaza meaning "pumpkin," "squash," or "gourd." Some historians hold the theory that Calabasas is a translation of the Chumash word calahoosa.

In honor of its namesake, the City of Calabasas and the Calabasas Chamber of Commerce hold an annual Pumpkin Festival in October, including carnival games, exhibits, demonstrations, and live entertainment. The festival has evolved from a small town fair to an annual event. Though the current Pumpkin Festival is held at Juan Bautista de Anza Park in Calabasas, the original festival was meant to have taken place where, according to legend, a traveling wagon carrying pumpkins overturned and started the area's first pumpkin patch.

Justin Drew Bieber ( /ˈbiːbər/ BEE-bər, born March 1, 1994) is a Canadian Pop/R&B singer-songwriter, musician, and actor. Bieber was discovered in 2008 by Scooter Braun, who came across Bieber's videos on YouTube and later became his manager. Braun arranged for him to meet with Usher in Atlanta, Georgia, and Bieber was soon signed to Raymond Braun Media Group (RBMG), a joint venture between Braun and Usher, and then to a recording contract with Island Records offered by L.A. Reid. Bieber's debut single, "One Time", was released in 2009 and peaked in the top twenty in Canada and charted in the top thirty in several international markets. His debut album, the seven-track EP My World, followed in November 2009, and was soon certified platinum in the United States. He became the first artist to have seven songs from a debut album chart on the Billboard Hot 100.