American rock and pop band
In the 1960s, Frankie Valli & the Four Seasons churned out hit after hit to become one of the most successful vocal groups in pop history. Their signature was Valli's stratospheric falsetto, but their success also resulted from sharp, melodic songwriting. During their prime, singles like "Sherry" and "Walk Like a Man" emphasized close-harmony singing with an urban swagger,... Wikipedia