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Demi Lovato performs at anti-bullying show

Demi Lovato joined forces with the Kardashian sisters on Sunday (30Oct11) to stage an anti-bullying rally.

Kim Kardashian and her siblings Khloe and Kourtney hosted the event outside Hollywood's El Capitan Theater as part of the series Extreme Makeover: Home Edition's special show, honouring the Walker family, who were left devastated by their young son's suicide in 2009 after he was targeted by his peers.

Lovato took to the stage to perform at the event and the stars urged the crowd to be more considerate of others in a bid to stop bullying.

After the rally, Kourtney Kardashian posted on her Twitter.com page, "Bullying is NOT ok + has to stop now! The Walker family touched my heart with their positivity after the tragedy of their sons (sic) suicide."