Audiences leaving a Frankie Valli & The Four Seasons concert are quick to describe the performance using one of the legendary group’s most well-known lyrics: “Oh, what a night.” Fans can check out the real-life Jersey Boys live when they play the Warner Theatre on April 7 and April 8; two nights Valli promises will be shows people will never forget.

“It’s going to be a phenomenal show, with all the songs that everyone came for,” Valli said. “We’ll also have some surprises, including songs that were hits outside the U.S. that maybe not everyone knows.”