Don't hold back, Chelsea! On Monday, March 10, Chelsea Handler appeared on Piers Morgan Live and verbally tore the host apart. The 39-year-old comedienne slammed Piers Morgan and shared her brutally honest opinion of why his CNN show has been canceled.

"You can't even pay attention for 60 seconds," Handler told Morgan after he was tweeting during a commercial break. "You're a terrible interviewer."

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"Well, you just weren't keeping my attention," Morgan, 48, replied. "It's more of an issue for you than for me."

"That's not my problem . . . this is your show," the Chelsea Lately host argued. "You have to pay attention to the guests that you invited on your show. Listen, it doesn't matter how interesting I am. You signed up for this show." 

"Of course it does!" Morgan shouted. 

"Well, maybe that's why your job is coming to an end," Handler sniped.

Morgan laughed off the remark, saying, "Wow, don't want to cross you, do we?"

"I don't know, do you?" Handler asked.

"I quite like to cross you," Morgan said. "I like you when you're being nasty."

The talk show host and his guest then changed the subject and managed to salvage the rest of their conversation.

Watch Handler go head-to-head with Morgan in the video clip above and tell Us: Whose side are you on?