Answer the question at the end by quoting:

Robert Stanley Crewe (November 12, 1930 - September 11, 2014) was an American songwriter, dancer, singer, manager, and record producer. He was known for producing, and co-writing with Bob Gaudio, a string of Top 10 singles for the Four Seasons. As a songwriter, his most successful songs include "Silhouettes" (co-written with Frank Slay); "Big Girls Don't Cry", "Walk Like a Man", "Rag Doll", "Silence Is Golden", "The Sun Ain't Gonna Shine (Anymore)",
The Bob Crewe Generation briefly reappeared as a chart act in the mid-1970s, recording material for the disco era. The Generation's 1970 LP Let Me Touch You, including covers of Henry Mancini's "Moon River" and "Two For The Road", arranged by Charles Fox, remains a favorite of lounge music collectors. It was also their only quadraphonic release. In 1975, Crewe wrote and produced disco material for The Eleventh Hour, who had dance club success with at least three releases on 20th Century Records: "Hollywood Hot" (45 rpm single, number: TC-2215), "Bumper to Bumper", and "Sock It To Me/It's Your Thing". In the mid-1970s, Crewe and Sir Monti Rock III formed the disco club favorites Disco-Tex and the Sex-O-Lettes, best known for their 1975 successes "Get Dancin'" and "I Wanna Dance Wit' Choo (Doo Dat Dance)". The group is referenced by Elvis Costello in his song "Invasion Hit Parade" and by The Pet Shop Boys in their song "Electricity". In 1977, at the insistence of producer Jerry Wexler, who had been an early mentor of his, Crewe recorded a solo album in Memphis, with Barry Beckett co-producing. The album, entitled Motivation, was a showcase for his singing voice. Although the album did not achieve chart success, it included the ballad "Marriage Made In Heaven", a collaboration between Crewe and Kenny Nolan which later became popular with Carolina Beach bands. The album also produced the song "It Took a Long Time (For The First Time In My Life)", also recorded by Patti Labelle. Crewe and Nolan had previously written two other songs - "My Eyes Adored You" and "Lady Marmalade" - which became back-to-back #1 records in 1975. "My Eyes Adored You" was produced by Crewe and performed by Frankie Valli with the Four Seasons. When the record label balked at releasing it, Crewe, certain of its quality and hit potential, bought back the rights for $4,000. Despite widespread rejections from music industry pundits, the song became a smash solo hit for Valli, and was the #1 chart-topping song of the year. "Lady Marmalade", recorded by Labelle, became notorious for its sexually provocative, New Orleans-inflected chorus, "Voulez-vous coucher avec moi, ce soir?" The song became a radio and dance club sensation. It achieved status as the #1 chart-topper of 1975 and has since been used in numerous motion pictures, including Cheech and Chong's The Corsican Brothers, Beethoven, Carlito's Way, The Birdcage, The Long Kiss Goodnight, and Semi-Pro.

Did he write songs for other artists?

"My Eyes Adored You" was produced by Crewe and performed by Frankie Valli

Answer the question at the end by quoting:

Journey is an American rock band that formed in San Francisco in 1973, composed of former members of Santana and Frumious Bandersnatch. The band has gone through several phases; its strongest commercial success occurred between 1978 and 1987. During that period, the band released a series of hit songs, including "Don't Stop Believin'" (1981), which in 2009 became the top-selling track in iTunes history among songs not released in the 21st century. Its parent studio album, Escape, the band's eighth and most successful, reached No. 1 on the Billboard 200 and yielded another of their most popular singles, "Open Arms".
Journey's album sales did not improve and Columbia Records requested that they change their musical style and add a frontman, with whom keyboardist Gregg Rolie could share lead vocal duties. The band hired Robert Fleischman and transitioned to a more popular style, akin to that of Foreigner and Boston. Journey went on tour with Fleischman in 1977 and together the new incarnation of the band wrote the hit "Wheel in the Sky"; however, management differences resulted in Fleischman leaving within the year. In late 1977, Journey hired Steve Perry as their new lead singer. Herbie Herbert, the band's manager, also hired Roy Thomas Baker as a producer to add a layered sound approach as Baker had done with his previous band, Queen. With their new lead singer and talented new producer, Journey released their fourth album, Infinity (1978). This album set Journey on their road to stardom with their first RIAA-certified platinum album. This album, with their hit song "Wheel in the Sky" (#57 U.S.), set Journey on a new path with a more mainstream sound to make their highest chart success to date. In late 1978, manager Herbie Herbert fired drummer Aynsley Dunbar, who joined Bay Area rivals Jefferson Starship shortly thereafter. He was replaced by Berklee-trained jazz drummer Steve Smith. Perry, Schon, Rolie, Smith and Valory recorded Evolution (1979), which gave the band their first Billboard Hot 100 Top 20 single, "Lovin', Touchin', Squeezin'" (#16); and Departure (1980), which reached No. 8 on the album charts. Journey's newfound success brought the band an almost entirely new fan base. During the 1980 Departure world tour, the band recorded a live album, Captured. Keyboardist Gregg Rolie then left the band, the second time in his career he left a successful act. Keyboardist Stevie "Keys" Roseman was brought in to record the lone studio track for Captured, "The Party's Over (Hopelessly in Love)," but Rolie recommended pianist Jonathan Cain of The Babys as the permanent replacement. With Cain's replacement of Rolie's Hammond B-3 organ with his own synthesizers, the band was poised for a new decade in which they would achieve their greatest musical success.

What is important about the popular style?
set Journey on a new path with a more mainstream sound to make their highest chart success to date.