Entertainment TV Jimmy Fallon Leads Restaurant Patrons in Impromptu 'Sweet Caroline' Performance — Watch the Clip! "Everyone loved him," a source tells PEOPLE of Jimmy Fallon's impromptu performance of "Sweet Caroline" Friday at the Polo Lounge in Beverly Hills By Glenn Garner Glenn Garner Instagram Twitter Glenn Garner is a Writer/Reporter who works heavily with PEOPLE's Movies and TV verticals. Since graduating from Northern Arizona University with a dual major in journalism and photography, he got his professional start at OUT Magazine, The Advocate and Teen Vogue, and he's since consistently kept his finger on the pulse of the LGBTQ community. His first book The Guncle Guide was released in 2020 and was featured on Katie Couric's list of 100 recommended books of the year. People Editorial Guidelines Published on October 24, 2021 03:21 PM Share Tweet Pin Email Jimmy Fallon pulled some overtime this weekend as he entertained some strangers while out to dinner. The four-time Emmy Award winner, 47, serenaded his fellow diners with an impromptu performance of Neil Diamond's 1969 karaoke classic "Sweet Caroline" in a clip obtained by PEOPLE, taken Friday at the Polo Lounge in Beverly Hills. The festive outing marked his first time in Los Angeles since before the COVID-19 pandemic began. "The place was so busy and there was a great atmosphere in there and there was a pianist playing, and suddenly, Jimmy just gets up and grabs the mic and starts chatting to the crowd and then singing," a source tells PEOPLE. Preteen Hosts of Jimmy Fallon's The Kids Tonight Show Say Longtime Host Is 'Like a Big Kid' "He said he hadn't been in L.A. for two years and sang someone 'Happy Birthday' and did a great little performance," the insider adds. "He was wearing his mask so people didn't know it was him instantly. He was in such great spirits and everyone loved him." He also worked the crowd with some cheeky one-liners befitting the Saturday Night Live alum, telling an elderly woman it was the "worst time to go to the bathroom" as she attempted to walk past him. "I love you guys! Be safe," Fallon told the crowd as he finished the song. Fallon previously sang "Sweet Caroline" alongside pal Drew Barrymore in their 2005 romantic comedy Fever Pitch, as the song is a beloved tradition at Boston Red Sox games, where much of the movie was set. RELATED VIDEO: Meet These 3 Young & Talented Hosts of Jimmy Fallon's New Late Night Show The Tonight Show host most recently put his vocal chops on display on The Kelly Clarkson Show, as he performed a duet of Sonny & Cher's 1965 hit "I Got You Babe" with host Kelly Clarkson last week. Fallon is also giving another talented singer the opportunity to perform on The Tonight Show Starring Jimmy Fallon as part of the grand prize offered on Clash of the Cover Bands, which premiered this month on E!.