Howard Stern recalled the first time David Letterman interviewed him during a "Late Show" visit marking Letterman's 30 years on U.S. late-night television.

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Radio star Stern appeared on Letterman's CBS program Wednesday night.

After the two complimented each other on growing more handsome as they age, Letterman pulled out a photo of Stern as a guest on his former NBC series "Late Night" back in 1984.

Stern is sporting a mustache and large glasses in the snapshot.

"Yeah, you should burn that," Stern joked.

"There I am, wow! And the mustache worked for me, didn't it?" Stern later said. "Dave, I swear to you, back then, the fact that you asked me to be on a national television show was mind-blowing to me."

"It looks like a guy who was on to talk about a career of writing bad checks," Letterman quipped.