Frankie Valli (79)
Age When First Single Came Out: 19
Age When Inducted Into the Rock and Roll Hall of Fame: 56
Most Recent Album: Romancing the '60s (2007)
Last Top 40 Hit: "Grease" (1978)
Current Status: Valli is still hitting the high notes with a new lineup of the Four Seasons. He also acts occasionally and even appeared on an episode of The Sopranos.