Justin Bieber Roast: Kevin Hart Reveals What to Expect

— -- We are just a month away from the Justin Bieber "Roast" on Comedy Central and the roastmaster himself, Kevin Hart, is dishing on what to expect.

"He'll be fine, that's a great friend of mine. I'm not going to be malicious, we'll throw a couple jabs here and there, but it's all about setting the tone," Hart told MTV News over the weekend. "It's all in fun."

Hart added that he's not trying to make the pop singer cry on his 21st birthday on March 30.

Read: Watch Justin Bieber Get Egged for Comedy Central Roast

"We don't," he said. "[Almost crying] where his face shakes. I don't want to make him cry, I just want to make his face shake. Then, go 'I'm kidding Bieb.'"

Check it out.

In the meantime, Comedy Central has released two promo videos: