Just a few hours before attending after parties for the Oscars with boyfriend Liam Hemsworth, Miley Cyrus was the victim of death threats on Twitter from cyber bullies, prompting the star to address with a heartfelt response about Twitter taking responsibility for death hoaxes.

I wont tolerate someone telling me 2 die, 19-year-old Cyrus wrote on Twitter. I think Twitter needs to take some responsibility and make it a safe environment!

Cyrus was being harassed on Twitter on Sunday, with user @TheCyrusSlut saying she dresses like white trash and is so f-king hideous.

U have nothing better 2 do than hate? That saddens me, she said. Im surrounded by love Im sorry 4 whatever happened 2 make u so bitter.

Fans responded to the nasty tweets to defend Cyrus while she partied at the Vanity Fair after party and Elton John's bash.

omg!! leave her alone..miley has better things to do with her life she does not need you to bring her down, Twitter user nyasiajackson wrote.

dont give the stupid haters attention they dont deserves that, wrote Twitter user BeRadiateLove. You deserve better girl There a smilers in the world who loves you.

Meanwhile Cyrus stepped out with her boyfriend, wearing a demure silver gown by Roberto Cavalli paired with a curled updo and bright red lips to the 20th annual Elton John AIDS Foundation Academy Awards viewing party.

Thank you Sir Elton John for such a lovely night! she tweeted after the party. Now to Vanity Fair. I love all the glitz & glam of the oscars & celebrating such talent!