Judging by subsequent tweets, the move could have something to do with internet trolls who express their displeasure with her posts.
"But why do people actually give a f**k what I say? Like if you don't care gtfo haha," she wrote. "That one time I started my own charity providing mental health care for people who can't afford it and this is what y'all talk about. And people wonder what's wrong with the world. Pay more attention to good than bad."
Despite her vow to abstain from Twitter and Instagram, the singer still plans to remain active on Snapchat.