Entertainment Movies Keanu Reeves Reveals the Only Celebrities He's Asked for Autographs — and Their Epic Responses Keanu Reeves told Stephen Colbert on Wednesday which of those celebrities accompanied their signature with a cheeky "F--- you!" By Jen Juneau Jen Juneau Jen Juneau is a News and Movies Staff Writer at PEOPLE. She started at the brand in 2016 and has more than 15 years' professional writing experience. People Editorial Guidelines Published on January 13, 2022 09:31AM EST You're never too famous to fanboy out over your idols — just ask Keanu Reeves. The Matrix Resurrections star participated in a fun round of "The Colbert Questionert" during his Wednesday appearance on The Late Show with Stephen Colbert, during which he revealed which two celebrities he has asked for their autographs. The first? The Velvet Underground's Lou Reed, said Reeves, 57. "But it wasn't for me — it was for a friend, and [Lou] was cool about it," he recalled of the late rocker. "It was [on] a little piece of paper, and it was [in] blue ink. … Yeah, it was good. It just said, 'Lou Reed.' " "It would have been really disappointing if it didn't say 'Lou Reed,' " joked Stephen Colbert, to which his guest replied, "I know, but it could have said, 'All my best' or ... " Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human-interest stories. George Carlin, Alex Winter and Keanu Reeves in Bill and Ted's Excellent Adventure (1989). Orion/Kobal/Shutterstock RELATED GALLERY: 9 of the Weirdest Things Celebrities Have Ever Autographed The second celebrity Reeves approached for their John Hancock was none other than legendary comedian George Carlin, whom he appeared with in 1989's Bill & Ted's Excellent Adventure. "I'm so jealous. I'm such a fan," said Colbert, 57. "And that was for you?" "Yeah," said Reeves. "He wrote … I think it was, 'Dear Keanu, F--- you!' " While the actor "always thought he just wrote that for me," he admitted, "then I met someone else who said that he wrote the same thing to them! Anyway, beautiful." Keanu Reeves. the late show with stephen colbert/ youtube Reeves and his Bill & Ted costar Alex Winter participated in a Zoom chat last year tied to the release of the long-awaited third film in the series, Bill & Ted Face the Music, opening up about having Carlin (who died at age 71 in 2008) on set. RELATED VIDEO: Lauren Lapkus Reveals She Was Most Starstruck by Keanu Reeves on Between Two Ferns: The Movie "He brought class ... He was just down to earth and worked really hard on [his character] Rufus," said Reeves, according to Looper. "And he brought a weight to it — I mean, it's George Carlin coming from the future," he added. "It was really extraordinary to have a chance to work with such an incredible person and artist." The Matrix Resurrections is currently playing in theaters and streaming on HBO Max.