The Hit Men concert, scheduled for 7:30 p.m. Jan. 23, is postponed until 7:30 p.m. Feb. 5 at the State Theatre Center for the Arts, Easton, because of the snowstorm.

The Hit Men are composed of former members of Frankie Valli and the Four Seasons, including drummer Gerry Polci, who sang on The Four Seasons’ hit, “Oh What a Night,” and keyboard player Lee Shapiro.

Shapiro not only toured with the Four Seasons, but with Tommy James and the Shondells, co-produced “Copacabana the Musical” with Barry Manilow, collaborated with producers, songwriters and musicians Bob Gaudio, Charlie Calello, Jimmy and Jerry Vivino, Paul Schaffer and Will Lee, formed Lee Shapiro Music that provides music for advertising and media, and created “Rock ‘N Roll Elmo” for Fisher-Price.

“We had been in touch with Frankie Valli since we left the Four Seasons, and after the ‘Jersey Boys’ won the Tony Award, we decided to do this,” says Shapiro in a phone interview.

“I called Frankie and talked to him about it and he said, ‘Go for it.’

“We didn’t want to be a cover band, but wanted to create the music we knew. We had one rehearsal and played, ‘Oh What a Night,’ and there was this eerie silence. We knew it was a go,” says Shapiro.

Polci performed on other Four Seasons’ hits such as “Who Loves You.” After leaving the Four Seasons he completed a music education degree and became a music teacher.

The Hit Men includes lead guitarist-vocalist Jimmy Ryan, bassist-vocalist Larry Gates and vocalist Russ Velazquez, and a horn section.

Ryan, vocalist and co-songwriter with The Critters, was lead guitarist, backup vocalist for Carly Simon.

Gates has co-written songs with Desmond Child, Tony and Emmy Award-winner Larry Hochman.

Velazquez is a studio session singer, arranger and producer who has worked with Sting, Carol King, the Ramones, LL Cool J, Luther Vandross, Korn and Paula Abdul. He is a four-time Emmy Award nominated composer and arranger for his work on “Sesame Street.”

The band has been together for five years.

The Hit Men perform Four Seasons songs’ “Rag Doll,” “Dawn,” “Walk Like a Man,” “Can’t Take My Eyes Of You” and “Sherry,” and hits by other performers, including Jim Croce’s “Leroy Brown,” Carly Simon’s “You’re So Vain” and Tommy James’ “Mony Mony.”

“We choose set lists based on the music we had an influence in or participated on. We don’t just do a tune because we like it.

“For instance, we just added, ‘Runaround Sue,” but Larry worked on it. Jimmy played on Elton John sessions and ‘Leroy Brown’ sessions, so we do that music.

“The audience is getting an experience of the people who played with all these great masters of music because we were there and all contributed in one way or another.

“When we did this 40 years ago, it was all about ourselves: ‘I want the spotlight. I want the solo.’ But today, the unexpected award is that this stuff really mattered to people.

“People come up to us with tears in their eyes and are truly taken aback. These people become young again. It influences their lives and it’s really where we all come from at this point. We are very grateful for the people who want to be transported back authentically,” Shapiro says.

Tickets: State Theatre Box Office, 453 Northampton St., Easton; statetheatre.org, 1-800-999-STATE, 610-252-3132