Kim Kardashian and her lovely sisters guest stars in "Extreme Makeover: Home Edition" for a charitable cause.

Everyone knew the Kardashian sisters very well. They promoted their reality TV shows and fashion line and helped brother Rob to make it to the finals of "Dancing With The Stars."

The trio graced the television show to help the Walker family and raise the awareness to anti-bullying causes, especially in school.

The recipient of the makeover is Sirdeaner and her family after they were left devastated when the 11-year-old member of their family, Carl Walker, committed suicide because he is a victim of bullying. Since Carl's death, the family has become advocates of anti-bullying.

The young boy took his own life in his room in the house that the family is still living in. Extreme Makeover rebuilt the family's home, which had structural problems as it was aged more than 100 years old.

The crew tore the house down and created a new house for the family. As the team works, the family was sent to Hollywood to meet the Kardashian clan at Sears that offered the famous Kardashian Kollection.

Khloe, 27, said that she can relate to the cause promoted by the family as she have endured bullying most of her school life as she was often compared to her sisters.

The Kardashian sisters also set up a anti-bullying rally to increase awareness against bullying. Disney star Demi Lovato graced the event and perform for the crowd.

Carl Walker Hoover hanged himself after he was continuously bullied in school and he was taunted in being gay.

Watch video below for the anti-bullying rally set up by the Kardashians and Demi Lovato:

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