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OTRC: Zach Galifianakis talks Sean Penn and Ke$ha disses in new interview

Zach Galifianakis speaks to OnTheRedcarpet.com in November 2010 about his new film 'Due Date' with Robert Downey Jr.

Zach Galifianakis' upcoming Rolling Stone interview reveals the funny man doesn't mince words.

In fact, the comedian, who once described Donald Trump as "grotesque," tells the magazine two anecdotes about meeting singer Ke$ha and turning down a role offer from Sean Penn.

The "Hangover" franchise star dons the cover of the magazine, which hits newsstands on June 17, and explains a run in with the "TiK ToK" singer.

"I saw that Ke$ha woman the other day," he tells the magazine, saying she had emailed him about getting drinks. He reportedly ran into her a few days later at a bar. "She was sitting by herself, and I walked up to her and said, 'Listen, I got your email. Your music is really bad! I don't know who listens to it, but I imagine it's, like, 6-year-olds -- and it's a bad message.'"

Galifianakis said he was offered a role in "Into the Wild" by Sean Penn, who once guest starred on his Web show "Between Two Ferns." He reportedly told Penn that he "couldn't talk because he had an appointment at Arby's" and to "send my Jews the script."

Galifianakis has starred in shows such as "Tru Calling" with Eliza Dushku. He told Rolling Stone he tried to get fired from it by telling the actress she "was eating her way to cancellation."

He was also on the spoof news show "Dog Bites Man" before he caught his big break in the hit comedy film "The Hangover" and its sequel "The Hangover Part II." He also co-starred with Robert Downey Jr. in "Due Date."

Galifianakis reveals in the interview that he's getting phone calls to star in "The Hangover Part III" and that the film will reportedly break out of its previous bachelor-party-gone-awry format and will feature his character escaping a mental institution with the help of the Wolf Pack.

In late May, "Hangover" co-screenwriter Craig Mazin told OnTheRedCarpet.com that a third film in the hit comedy franchise was in the works and would be "the final one."

Scot Armstrong, the movie's third screenwriter, said: "We've been talking about ideas but we don't really have anything nailed down yet."

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