Four Seasons lead singer Frankie Valli recently celebrated his 81st birthday, and by any account, it's been a successful last couple of years for him and the other members of the group. The successful Broadway play, The Jersey Boys, was turned into a movie directed by Clint Eastwood, and the movie was a big hit too. It purported to tell the story of the rise of the Four Seasons from their New Jersey beginnings back in the late fifties. The band, by the early sixties, was already a household name, with a string of hits like Sherry, Big Girls Don't Cry, and Walk Like A Man. They made a label change in 1963, and immediately, with their first release on the Philips label, Dawn (Go Away), their sound took a more mature, and harder edged sound. The Four Seasons ran neck to neck with the Beach Boys from 1962-1964 as the most popular singing group in America. 1965 saw the release of one of the Four Seasons' biggest middle period hits, the catch Let's Hang On, which almost made it to the number one slot on the Billboard Hot 100 chart. It remains one of the most-requested Four Seasons hits on oldies radio.