Stevie Ryan, an actress and comedian who gained fame with impersonations of celebrities on YouTube, has died at the age of 33.
Los Angeles County coroner's spokesman Ed Winter said Ryan died on Saturday at her home in Los Angeles.
He said her death has been ruled a suicide after a post-mortem examination.
Ryan gained fame on YouTube with impersonations of celebrities, including Justin Bieber, Kim Kardashian and Amy Winehouse.
She also had a sketch show on VH1, Stevie TV, and co-hosted a relationship talk show with Brody Jenner.