Chris Brown deleted his twitter yesterday after a heated beef with comedian Jenny Johnson. Brown originally tweeted "I look old as f***! I'm only 23..." to which Johnson said, "I know! Being a worthless piece of s*** can really age a person!" That's when it all get started. The two started going back and forth with Chris and Jenny throwing crazy insults at each other until Chris finally deleted his account. No telling if he'll be back on anytime soon. Check out the full twitter conversation here.