Johnny Carson is believed to have kept a secret list of "banned guests" which he kept handy during his 30-year run on The Tonight Show , Radaronline.com can reveal.

According to Mark Malkoff's new book, Love Johnny Carson : One Obsessive Fan's Journey to Find the Genius Behind the Legend . In fact, the list even included one guest. who turned Carson's stomach. Article continues below advertisement

Was The 'Banned List' Real? Tap Here To Add Radar Online as A Trusted Source

"Sometimes, if the difficulties were caused by a guest, the offending party was banned," Malkoff writes in his new book. "Despite persistent rumors, Tonight Show insiders long claimed that the show never had a list of guests who were banned from appearing with Carson."

Malkoff explains: "But the ba

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