The Four Seasons is an American rock and pop band that became internationally successful in the 1960s and 1970s. Since 1970, they have also been known at times as Frankie Valli and the Four Seasons. In 1960, the band known as the Four Lovers evolved into the Four Seasons, with Frankie Valli as the lead singer, Bob Gaudio (formerly of the Royal Teens) on keyboards and tenor vocals, Tommy DeVito on lead guitar and baritone vocals, and Nick Massi on electric bass and bass vocals. The legal name of the organization is the Four Seasons Partnership, formed by Gaudio and Valli taken after a failed audition in 1960.

The Four Seasons signed as artists to Crewe's production company, and they released their first Crewe-produced single under their new name in 1961 ("Bermuda"/"Spanish Lace" on Gone Records). The single did not chart. The band continued working with producer Bob Crewe as background vocalists, and sometimes leads under different band names, for productions on Crewe's own Topix label. As a follow-up, Bob Gaudio wrote a song that, after some discussion between Crewe and Gaudio, was titled "Sherry". After the song was recorded, Crewe and the members of the band solicited record labels to release it. It was Frankie Valli who spoke with Randy Wood, West Coast sales manager for Vee-Jay Records (not the founder of Dot Records) who, in turn, suggested the release of "Sherry" to the decision makers at Vee-Jay. "Sherry" made enough of an impression that Crewe was able to sign a deal between his production company and Vee-Jay for its release. They were the first white artists to sign with Vee-Jay.  In 1962, the band released their first album, featuring the single "Sherry", which was not only their first charted hit but also their first number-one song. Under the guidance of Bob Crewe, the Four Seasons followed up "Sherry" with several million-selling hits, generally composed by Crewe and Gaudio, including "Big Girls Don't Cry" (their second #1 hit), "Walk Like a Man" (their third #1), "Candy Girl", "Ain't That a Shame", and several others. In addition, they released a Christmas album in December 1962 and charted with a unique rendition of "Santa Claus Is Coming to Town".  From 1962 to early 1964, the Beach Boys were the only band to match the Four Seasons in record sales in the United States, and their first three Vee-Jay non-holiday single releases (i.e., ignoring their version of "Santa Claus Is Coming to Town") marked the first time that a rock band hit #1 on the Billboard singles charts with three consecutive entries.  In 1962, they were invited to perform their hit "Big Girls Don't Cry" on the show American Bandstand.Answer this question using a quote from the following article:

Who were the band members at this time?