Check this out for a reference to Tommy DeVito and Joe Pesci-Federico Castelluccio's Official Website Tommy was an original member of the Four Seasons, and, no doubt, you know that Castelluccio is Frankie Valli's real name--also, Frankie grew up in Harrison, which is where the audition took place (I know this, because he grew up with a friend of mine, who wrote one of their hits)--

I don't know if Tommy is really his personal assistant--I have read that Tommy lives in Las Vegas, and that Pesci is often seen hanging out with him there--also have read that Pesci has a bluegrass band--

Frankie Valli and the Four Seasons continue to perform--check here for everyone who has been in the band List of Members of the Four Seasons Pesci is not listed--I heard Bob Gaudio talking about the band back in about 1986, and he said that it had always been a group thing, even when Frankie did stuff using only his own name--