This powerful falsetto behind classic hits “Walk Like a Man” and “Big Girls Don’t Cry” dropped an octave for his solo work and scored big with “Grease” and “Can’t Take My Eyes Off of You.”

• Valli’s career—both solo and with the Four Seasons—includes 19 Top 10 hits and more than 100 million record sales.
• Frankie Valli was inducted into the Rock and Roll Hall of Fame in 1990.