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Joan Rivers who has made a career of making fun of celebrities, says she’s not sorry for recent jabs at singer Adele and the Holocaust.

While appearing on Late Night with David Letterman this week, the comedieanne drew boos from the crowd after she attacked the Grammy Award winner for her weight.

“What is her song, ‘Rolling in the Deep’? she asked.  “She should add — ‘fried chicken.’”

Then, later in the week, she drew more criticism after making a crude reference to the Holocaust during a taping of E!’s Fashion Police when she was complimenting super model and German-American Heidi Klum on her Oscar dress.

“The last time a German looked this hot was when they were pushing Jews into the ovens,” she quipped.

Both remarks made headlines but it did not fazed Rivers.

The legendary comic appeared on the PIX Morning News Friday where she explained, it was simply a joke.

“People got angry about me calling Adele fat, but she is chubby, come on it’s okay,” Rivers said. “The only book she reads cover to cover is the menu.”

Although the Anti-Defamation League is urging the comic to apologize for the Holocaust jab, Adele nor Heidi Klum did not respond to the controversy.

Watch Joan’s full interview on the PIX Morning News below: