[15] The same year, the quartet (DeVito, his twin brother Nick, Majewski and Valli) released their first record, Otis Blackwell's "You're the Apple of My Eye", which appeared on the Billboard Top 100 singles chart, peaking at #62.

[19] To fill the gap, two members of the Hollywood Playboys, another touring group in North Jersey, joined Valli and Tommy DeVito: lead keyboardist Hugh Garrity and guitarist Nickie Massey.

In a two-record set dubbed The Beatles vs the Four Seasons: The International Battle of the Century!, Vee-Jay created an elaborate two-disc package that the purchaser could use to write on and score individual recordings by their favorite artist.

A few months later, Joe Long was permanently hired and became a mainstay of the band on bass and backing vocals until 1975, with Calello returning to arranging.

By 1969, the band's popularity had declined, with public interest moving towards rock with a harder edge and music with more socially conscious lyrics.

[30] The album cover was designed to resemble the front page of a newspaper, pre-dating Jethro Tull's Thick as a Brick by three years.

Reverting to the "Four Seasons" billing without Valli's name upfront, the group issued a single on Crewe's eponymous label, a rendition of "And That Reminds Me", which peaked at number 45 on the Billboard chart.

[36] After leaving Philips, the Four Seasons recorded a one-off single for the Warner Bros. label in England, "Sleeping Man", backed by "Whatever You Say", which was never released in the USA.

Valli has consistently spoken of how much of the group's late 1960s and early 1970s material was poorly marketed and only later received the appreciation that he felt it deserved.

[30] In late 1973 and early 1974, the Four Seasons recorded eight songs for a second Motown album, which the company refused to release, and later in 1974, the label and the band parted ways.

[30] He took the tape to Larry Uttal, the owner and founder of Private Stock Records, who wanted to release it as a Frankie Valli solo single.

19-year-old keyboardist Lee Shapiro was recruited to replace Gaudio (on Valli's explicit recommendation) as the latter moved to a studio role, in addition to taking on arrangement and some songwriting duties.

[37] A member of the group's backing band recruited drummer Gerry Polci, who would eventually take over a large portion of lead vocals to ease the load on an ailing Frankie Valli (who was gradually losing his hearing due to otosclerosis, though eventually surgery restored most of it);[38] Polci, in turn, recruited The Happenings' guitarist John Paiva (who had also worked as a session musician) to replace Callas on guitar.

[39] Don Ciccone, whose career with The Critters had come to an abrupt end due to his entry into the armed forces, succeeded Long as bassist and took on the occasional lead vocal.

Valli had his first truly solo hit in the summer of 1975 when the Bob Crewe-produced "Swearin' to God" followed "My Eyes Adored You" into the upper reaches of the Hot 100, peaking at the #6 position and capitalizing on the growing disco craze.

The Four Seasons opened 1976 atop the Billboard chart with their fifth #1 single, "December, 1963 (Oh, What a Night)", co-written by Bob Gaudio and his future wife, Judy Parker.

Although the band also scored minor chart placements with "Silver Star" (with Valli on harmony vocals) (#38 in 1976) and "Down the Hall" (#65 in 1977), both sung by Polci, and "Spend the Night in Love" (#91 in 1980), which again featured Polci as main lead vocalist and Valli singing the bridge section and contributing to backup group vocals, "December, 1963" marked the end of the Seasons' hit-making run.

The band broke up in 1977 as Shapiro got married,[37] Polci began working for Barry Manilow,[38] and Valli—who also had surgery to restore his worsening hearing[42]—accepted an offer to sing the theme song for the movie Grease.

Lingle would remain with the group into the 1990s,[44][45] while Polci (who had an extended hiatus from the band in the mid-1980s before returning) left for the final time in 1990 when he married Valli's daughter Toni.

Even after the rise and fall of the band's sales in the disco era, the Four Seasons, in one version or another, continued to be a popular touring act, with Valli and keyboardist/music director Robby Robinson (who joined in the early 1980s)[9] being the only constants in the midst of a fluctuating lineup.

Although Gaudio is still officially part of the band (he and Valli are still equal partners in the Four Seasons Partnership), he now restricts his activities to writing, producing, brand management and the occasional studio work.

(On at least one or two occasions, starting in the late 1980s or early 1990s, Long would make guest appearances with Valli and the band at select shows, but it is unclear if this included full performances or parts of concerts.

The Adidas commercial is a popular hit on YouTube and features a house party with famous celebrities such as David Beckham, Russel Simmons, Kevin Garnett, Missy Elliott, Katy Perry, and Mark Gonzales.

Jersey Babys [sic] was originally envisioned by Danielle Lahlezar, Gaudio's daughter from his first marriage to Brit Olsen (to whom the album was dedicated).

[52] Members of the 1970s lineup of the group (Polci, Ciccone, and Shapiro) reunited without Valli in 2011 as The Hit Men; it toured with several other session musicians of good repute.

The channel has since added archival videos from the group's television appearances and records by Four Seasons tribute acts, such as former Jersey Boys cast members.

"[60] In a statement to People, Valli indicated a willingness to continue performing as long as audiences continued to buy tickets, responding to accusations of lip syncing by noting that his touring production was using a strategy it had long relied on for studio recordings "layering vocals and instruments" to allow the Seasons to maintain a sound similar to that heard in the 1960s despite Valli's age.

Jersey Boys, a musical play based on the lives of the Four Seasons and directed by Des McAnuff (The Who's Tommy, 700 Sundays), premiered at his La Jolla Playhouse and opened on November 6, 2005, to generally positive reviews.

The original cast included John Lloyd Young as Frankie Valli, Daniel Reichard as Bob Gaudio, Christian Hoff as Tommy DeVito, and J. Robert Spencer as Nick Massi.

The movie adaptation, directed by Clint Eastwood, starred John Lloyd Young as Frankie Valli, Vincent Piazza as Tommy DeVito, Michael Lomenda as Nick Massi and Erich Bergen as Bob Gaudio.