Justin Bieber Begs Seth Rogen: "Come On, Man ... Roast Me!"

Comedy Central

The singer reached out to Rogen on Twitter, a year after Rogen famously called Bieber a "piece of shit."

Justin Bieber is jonesing for Seth Rogen to roast him on the upcoming Comedy Central Roast after Rogen famously blasted the singer on Twitter as a "piece of shit."

Bieber sounded off Monday with a series of tweets at the actor, after apparently failing to get in touch with Rogen on the phone. Bieber wrote, "Come on man. Check your voicemail. I took it like a man as u blasted a nervous kid fan of yours (me). Now I'm a man. Roast me!"

Bieber followed up, writing, "I'm still your biggest fan. Even after 'the interview.' That's dedication. Roast me! Sincerely yours..the piece of shit..justin;)"

Bieber then got the hashtag #WeWantSeth trending worldwide. 

Rogen has openly disliked Bieber for a while. "[Bieber's] a good example of someone you meet, who you think you're going to hate, and then you get to hate him as much as you thought," Rogen said during a 2014 interview with Howard Stern. "You meet him, and he lives up to every one of your expectations of how you hope he will be."

Rogen also famously tweeted after Bieber's DUI arrest, "All jokes aside, Justin Bieber is a piece of shit."

Rogen has yet to respond publicly to Bieber's overtures.