Chris Brown vs. Jenny Johnson

Chris Brown has taken down his Twitter account after a vulgar online exchange with comedian Jenny Johnson.

Johnson says she’s now receiving death threats on Twitter from the singer’s supporters.

The fight started when 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 his 2009 assault on singer Rihanna.

Photo: AP Photo
54th Annual Grammy Awards, Staples Center, Los Angeles, Calif.

Before deleting his account, the 23-year-old 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.