Jon Hamm.Photo:Theo Wargo/Getty

Theo Wargo/Getty
Jon Hammgave fans a night to remember when he took to the stage at a popular Chicago karaoke event on New Year’s Day.
On Wednesday, Jan. 1, patrons ofBub Citywere treated to a New Year’s surprise when theMad Menalum, 53, made an unexpected appearance and showed off his vocal chops during the venue’s weekly live band karaoke night.
TheTransformers Onestar hammed it up for the audience, performing several numbers including renditions ofNeil Diamond’s 1969 hit “Sweet Caroline,“Radiohead’s “Creep” andPrince’s “1999.”
A rep for Bub City tells PEOPLE that Hamm casually walked onstage as Lloyd Snyder of Lloyd Snyder & the Big Rig Band handed him a mic. “Jon’s here,” Hamm announced to the packed crowd, prompting lots of cheers and clapping.
Jon Hamm performs karaoke at Bub City in Chicago on Jan. 1, 2025.courtesy of Bub City

courtesy of Bub City
“All right, Jon, welcome to Chicago,” Snyder said, as he pointed the actor toward the lyrics screen.
“Chicago’s wonderful, but I’m from St. Louis,” Hamm then said, jokingly adding, “Calm down, everyone.”
That’s when the actor kicked off his first vocal performance of the night:Garth Brooks' “Friend’s in Low Places.”
Bub City later posted a carousel onInstagramfeaturing a series of videos of the actor onstage with the caption: “When Jon Hamm grabs the mic at Live Band Karaoke, it’s a night to remember. 🎤✨. Thanks for kicking off Life Band Karaoke 2025 with us, Jon!”
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The karaoke venue also shared Instagram posts from lucky customers who witnessed the actor’s performance and tagged videos on their official account.
“Jon Hamm hammin’ it up at @bubcity 😆,” wroteone Instagram user, who posted a video of Hamm playing some air guitar as he sang Brooks’ “Friends in Low Places.”
Later in the evening, theTop Gun: Maverickstar returned to the stage for an encore, which included a performance ofShaboozey’s “A Bar Song (Tipsy),” complete with female backup singers.
Hamm had the entire crowd singing along as he belted out “Sweet Caroline.”
Jon Hamm performs live karaoke at Bub City in Chicago on Jan. 1, 2025.courtesy of Bub City

“Jon Hamm lovin on some live karaoke @bubcity,” postedanother Instagram user, who shared an Instagram Stories snap of Hamm’s rendition of the Neil Diamond classic.
source: people.com