Frankie Valli, born Francesco Stephen Castelluccio on May 3, 1934, in Newark, New Jersey, stands as one of the most distinctive and enduring voices in American popular music. As the lead singer of the Four Seasons, Valli captivated audiences with his remarkably powerful countertenor, a voice that defied conventional categorization and helped define the sound of an era. With a career spanning over six decades, Valli has achieved a level of success and longevity that few artists can match, cementing his legacy as a true icon of rock and roll and pop.

Valli's journey to stardom began in the late 1950s when he joined forces with Tommy DeVito, Nick Massi, and Bob Gaudio to form the Four Seasons. The group's breakthrough came in 1962 with the release of "Sherry," a song that shot to number one and showcased Valli's astonishing falsetto. This success was quickly followed by a string of chart-topping hits, including "Big Girls Don't Cry" and "Walk Like a Man," both released in 1963, and "Rag Doll" in 1964. These songs not only dominated the airwaves but also solidified the Four Seasons' place in music history as one of the most successful vocal groups of the 1960s. The group's later triumph, "December, 1963 (Oh, What a Night)," reached number one in 1975, proving their remarkable staying power.

While achieving immense success with the Four Seasons, Valli also carved out a formidable solo career. His 1967 recording of "Can't Take My Eyes Off You" became an enduring classic, reaching number two on the charts and remaining one of the most covered songs in popular music. He achieved further solo success with the number-one hits "My Eyes Adored You" in 1974 and "Grease" in 1978, the title track for the hit film Grease. These achievements demonstrated Valli's versatility and his ability to connect with audiences across different musical landscapes.

The music industry has bestowed numerous honors upon Valli throughout his career. In 1990, he and his fellow original Four Seasons members were inducted into the Rock and Roll Hall of Fame, followed by induction into the Vocal Group Hall of Fame in 1999. Valli was also inducted into the New Jersey Hall of Fame in 2010, with the Four Seasons receiving a separate induction in 2017. In a momentous recognition of his enduring impact, Valli received a star on the Hollywood Walk of Fame in May 2024, a joint honor for both himself and the Four Seasons, which he accepted in person. The following year, in February 2025, he was awarded a Grammy Lifetime Achievement Award, his first-ever Grammy, a fitting tribute to a career that has brought joy to millions. Beyond his musical achievements, Valli's life and career were dramatized in the acclaimed jukebox musical Jersey Boys, which brought his story to a new generation of fans and solidified his status as a legendary figure in American culture.