Photo Artis and Gossip

Frankie Valli — the lead singer of “The Four Seasons” and brainchild behind the musical “Jersey Boys” — is learning a hard lesson about marrying younger women, because his ex is trying to take him to the cleaners.

Randy Valli — who was married to Frankie for 27 years — has filed legal docs, asking the divorce judge for attorney’s fees, but what’s really interesting is how much money he makes — and she already gets.

According to legal docs, Frankie is raking in more than $ 515,000 per month — presumably a big chunk is from “Jersey Boys.” 

But 51-year-old Randy is already getting a big piece of the 77-year-old Frankie.  For starters, she gets $ 30,000 a month — $ 5 grand in spousal support, and $ 25,000 grand a month in royalties from “Jersey Boys.”

And this is interesting … even though she’s pulling in more than a third of a million bucks a year, the docs says she’s getting $ 810 a month in public assistance.  It looks like that money is for a portion of his SSI because she’s taking care of their minor children.

Hmmm…. Harvey just announced to the room he’s thinkin’ of a TMZ musical.