Bon Jovi keyboardist David Bryan gave an “unforgettable” performance when he spontaneously took over the piano at a New York City hotspot.

Eyewitnesses tell Page Six exclusively that the musician tickled the keys last Friday at Silver Lining inside the Moxy Lower East Side hotel, where patrons were treated to an impromptu performance of “Great Balls of Fire.”

Bryan, 61, left “the crowd cheering,” an insider tells us, adding that his rousing rendition of the classic Jerry Lee Lewis song made for an “unforgettable evening.”

We’re also told Bryan’s wife, Lexi Quaas, and his 29-year-old son, Colton Rashbaum, joined him for lively the night out.

In our footage, a blond woman can be seen facing the stage and dancing her heart out as Bryan and the rest of the house band sing and play.

At one point, the woman, who may be Quaas, glides across the entire floor in front of the stage as she shakes her hips and waves her arms.

Other guests seated adjacent to the stage can also be seen boogying in their seats as the whole room erupts into a sing-along.

Bryan’s appearance on the Lower East Side is a far cry from his usual appearances on Broadway, where he has penned two musicals with songwriting partner Joe DiPietro.

His most recent one, “Diana,” focused on the late Princess Diana‘s disastrous marriage to now-King Charles III as well as his relationship with Queen Consort Camilla.

Unfortunately, one performance was interrupted by Ramona Singer, who was seen acting inconsiderately by refusing to wear a mask during the COVID-19 pandemic and placing her drink on the stage.

However, the “Real Housewives of New York City” alum denied any wrongdoing.

“Ramona only took off her mask when she took a sip of her drink, which was allowed,” a rep for the former reality star told us at the time.

“Numerous attendees had their drinks on the stage 30 minutes prior to the play starting, and once the announcement was made that drinks were not allowed on the ledge of the stage, everyone immediately removed.”