LINKEDINCOMMENTMORE

R&B singer Chris Brown has taken down his Twitter account after a vulgar online exchange with Houston comedian Jenny Johnson.

Johnson says she s now receiving death threats on Twitter from Brown s supporters.

The fight started when 23-year-old Brown posted a picture of himself, saying he looked old. Johnson replied: I know! Being a worthless piece of (expletive) can really age a person.

Brown fired back a series of crude sexual jokes. Johnson posted a link to a news story about Brown s 2009 assault on singer Rihanna.

Before deleting his account, Brown wrote: Just ask Rihanna if she mad?????? The on-again-off-again couple have been seen together recently.

A representative for Brown s record label didn t immediately respond Monday to an email seeking comment.

Brown had 11.6 million followers on Twitter.

Read or Share this story: http://www.khou.com/story/entertainment/2014/07/22/11887624/