Is it possible for Chris Brown to reach a new low? Well, he's had a pretty good go at with a series of vulgar tweets directed at American television personality Jenny Johnson. Though it was the Emmy winner that began the spat by calling Brown a "worthless piece of shit", it was he who replied with a flurry of repulsive insults.

Round One: Chris Brown had initially told followers, "I look old as f*ck! I'm only 23..." to which Johnson replied, "I know! Being a worthless piece of sh*t can really age a person." Ouch. Though things were about to get much worse.

Round Two: Brown offered, "take them teeth out when u Sucking my d*ck HOE," though Johnson saw her opportunity and pounced, replying, "It's "HO" not "HOE" you ignorant f*ck."

Round Three: This is where Brown really started to lose his footing, only managing to muster, "I should fart while ur giving me top. Seize the day" Johnson again pounced on the immaturity of Brown's comeback and offered, "Your mom must be so proud of you."

Round Four: Having been hit with a variation on a yo-momma joke, Brown thought he'd turn the feud on its head and told Johnson, "mom says hello... She told me not to shart in ur mouth, wanted me to sh*t right on the retina, ....pinkeye" Pretty intense, though Brown wasn't done there, offering, "Let me leave this b*tch alone... It's good to know my worth by listening to a b*tch that is worthless!" 

Round Five: Presumably dumbstruck by Brown's replies, Johnson had little more to offer, though did tell followers, "Okay. I'm done. All I got from that exchange with Chris Brown is that he wants to sh*t and fart on me," before signing off with, "I have zero respect for a person who seems unapologetic for the terrible crime he committed and shows no signs of changing."

So there you have it. Though neither landed a straight knock-out, we'd have to give this Twitter battle to Johnson on points, by some distance. Brown has since deleted his Twitter account, probably resigning to the fact that he lost this one.