07/20/2011 02:22 pm ET Updated Dec 06, 2017

Marc Maron Survived Imaginary Mouth Cancer (VIDEO)

Comedian and "WTF" host Marc Maron went on "Conan" Tuesday night to promote his new album, "This Has To Be Funny." While on the show, Maron recounted the bizarre experience of trying to get Conan O'Brien to leave his house (after Conan appeared on Maron's podcast), and the spectrum of emotions of he felt when he thought he had mouth cancer for about ten minutes.

Maron was a regular on "Late Night with Conan O'Brien," appearing on the NBC show a record 44 times between 1997 and 2008. Tuesday's episode marked Maron's second appearance on O'Brien's new TBS show, perhaps a sign that he will become a regular once again.

"This Has To Be Funny" will be released by Comedy Central records on Tuesday, Aug. 3.