Jennifer Lopez delivered an unexpected 10-minute performance at the Sundance Film Festival, surprising the crowd with her energy. She described the atmosphere as electric, saying, “The energy was buzzing” as she took the stage.

Jennifer Lopez is bringing the “dance” to Sundance!

The 55-year-old multi-talented star surprised the crowd at TAO Park City in Park City, Utah, on Saturday, January 25, when she took over the DJ booth for a surprise 10-minute set featuring some of her 2000s hits.

At the Sundance Film Festival pop-up event, Lopez took the stage alongside DJ Chase B for the Casamigos party, where she performed two tracks from her 2002 album This Is Me… Then: “Jenny from the Block” and “All I Have.”

The two-night event wrapped up with Jennifer Lopez in high spirits, according to a source who spoke to PEOPLE. While attending the premiere of her latest film Kiss of the Spider Woman, Lopez initially danced and sang from her table before making her way behind the DJ booth, where she energized the crowd. The source noted that her surprise mini-set “changed the vibe of the night” and created an electric atmosphere.

For the occasion, Lopez wore a flowing beige jacket and matching pants, keeping the energy up as she pointed her microphone at the audience. Other notable guests at the pop-up included Post Malone, Niecy Nash-Betts, Jon Hamm, and Zach Braff, among others.

Lopez is having a busy month, celebrating some major career milestones. On January 20, she shared the news that her 2024 film Unstoppable had claimed the top spot for most-streamed movie worldwide on Prime Video.

In her post, Lopez tagged her co-star Jharrel Jerome, the film’s subject Anthony Robles, and her ex Ben Affleck’s company, Artists Equity. The wrestling drama tells the story of Robles, who won the 2011 NCAA wrestling championship, and also stars Bobby Cannavale, Michael Peña, and Don Cheadle.