Chris Brown deletes Twitter account

  • Singer Chris Brown has deleted his Twitter account following a heated online exchange with comedian Jenny Johnson on Sunday.

    Johnson has said she is now receiving death threats on the micro-blogging website from the singer's fans.

    The fight started when 23-year-old Brown posted a picture of himself, saying he looked old. Jenny replied: "I know! Being a worthless piece of s*** can really age a person."

    Brown retaliated with a series of crude sexual jokes after which Johnson posted a link to a news article about his 2009 assault on then-girlfriend Rihanna.

    Before deleting his account, Brown tweeted: "Just ask Rihanna if she mad??????"

    The on-again-off-again couple has been photographed together recently.

    Brown had 11.6 million followers on Twitter.