Howard Stern celebrates Letterman’s 30th year in late-night television by throwing around the cash Letterman intended to give Brad Pitt. (John P. Filo/AP)

David Letterman has spent much of this week celebrating his 30th year in late-night television. He commemorated the moment on Tuesday by forcing Bill Murray to kick a field goal. And last night, on the official anniversary of the first airing of his original NBC show “Late Night With David Letterman,” he brought out another of his most loyal and reliably outspoken guests, Howard Stern.

Stern has been sitting in one of Letterman’s guest seats since the early ’80s, and always has something blunt to say about someone. Last night, one of Stern’s targets was Brad Pitt, who he claimed would have nothing interesting to say in a “Late Show” interview, prompting Letterman to give Stern the $120 he had been offering the “Moneyball” star in the hope of persuading him to appear on the show. (For the record, that’s the money Stern is tossing about gleefully in the photo above.)

And, of course, Stern had some choice things to say about Jay Leno.

After noting that NBC executives asked him to appear on “The Tonight Show” in order to promote his new gig as a judge on “America’s Got Talent,” Stern said, “I looked at them and shot ‘em a look and said, ‘You know I’m a Letterman guy?’ ” He then expressed his anger with Letterman for (allegedly) suggesting the late-night talk show war is over.

“I don’t forgive him,” Stern said of Leno. “This is the guy who hid in a closet and took away the show from you.”

Watch the entire exchange in the video below, as well as some additional classic clips of Stern and Letterman, including a yuletide appearance in which Stern showed up in drag to promote his book “Miss America” and looked like a cross between Charo and Carrie Bradshaw.

Stern last night on Letterman:

Stern going on a Leno-related tirade a year ago on the “Late Show”:

Stern, all made up and attempting to dance on Dave’s desk a la Drew Barrymore:

An appearance from 1988 in which the shock jock looks kind of like a member of Winger, and has nothing good to say about his experience on Hollywood Squares.

And Stern wearing pleated leather pants and looking like he just stepped off the set of “Boogie Nights” way back in 1984.