Back so soon?

Stephen Colbert was back on late-night television on Friday, just one day after taping the final episode of CBS’ “The Late Show.”

The former TV host helmed “Only in Monroe,” a public access program in Monroe, Michigan — the same show he appeared on in 2015 in a quirky dry run before his “Late Show” debut.

Colbert had hinted at the comeback during his farewell monologue.

“Tonight is our final broadcast from the Ed Sullivan Theater,” he said, prompting boos from the audience.

“No, no, we were lucky enough to be here for the last 11 years, all right? Can’t take this for granted,” he added. “Though technically our first show in July of 2015 was from a public access station in Monroe, Michigan, for an audience of 12 people. Show business being what it is these days, that’s probably where you’ll see me next.”

Turns out he wasn’t kidding.

As in 2015, his appearance was unannounced. His monologue leaned heavily on local references. He helmed a segment titled “Monroe News” and welcomed back Eminem, who had also appeared on the show during Colbert’s original visit 11 years ago.

CBS announced in July that “The Late Show” — which had run for 33 years — would be canceled as the Paramount-owned network sought the Trump administration’s approval for its $8 billion merger with Skydance. The decision sparked widespread backlash, with critics accusing CBS of capitulating to political pressure. Colbert has been a vocal critic of President Donald Trump and his administration; CBS has maintained the move was purely financial.

On Friday night, Trump shared an AI-generated video on Truth Social of him walking up from behind Colbert on “The Late Show” set and throwing him into a dumpster.

Thursday’s finale featured an all-star lineup, including Paul McCartney, Ryan Reynolds and fellow late-night hosts Jon Stewart, Jimmy Kimmel, Jimmy Fallon, Seth Meyers and John Oliver. The broadcast ran more than 20 minutes over its standard one-hour slot and closed with McCartney performing the Beatles’ “Hello, Goodbye.”

Following his run on “The Late Show,” Colbert — a devoted “Lord of the Rings” fan — will turn his attention to writing the screenplay for the franchise’s next film.