Frankie Valli, 90, marked a significant moment when ... The Four Seasons frontman is the father of six children, and is no stranger to tragedy following the tragic deaths of his stepdaughter ...

Frankie Valli has six children: Celia, Antonia ... became stepfather to Celia after he married Mandel in 1957. Celia died in February 1980 during an accident. Jersey Boys writer Rick Elice ...

River Callaway/Variety via Getty When Frankie Valli received a star on the Hollywood Walk of Fame on Friday, May 3, for his work with the Four Seasons, he was joined by his twin sons Emilio and ...