Money can give you a heart attack-ack-ack-ack-ack!

Billy Joel knows a little something about a dwindling bank account. While the singer of "We Didn't Start The Fire" and "Piano Man" is currently reportedly worth upwards of $220 million, Billy had some major financial issues in 1989. In fact, he lost about $90 million dollars.

Yeah... that's undoubtedly a lot of money.

Here's what actually happened...

Don't Trust Your Former Brother-In-Law... Is The Moral Of Billy Joel's Story

Because of what went down in 1989, Billy Joel has joined a list of Hollywood celebrities who've lost out on some major dough, for one reason or another.  Some celebrities just aren't good with money. ...Look at 50 Cent and all of the financial woes he's had. But we're not sure that one could fully blame Billy Joel for what happened to him in 1989.

As soon as Billy Joel really started to rake in the dough thanks to his countless sold-out concerts, record sales, and music videos, he had to hire someone to manage his finances. According to The LA Times, Billy made the unfortunate mistake of entrusting his growing fortune to Frank Weber, a financial manager who happened to be Billy's former brother-in-law.

After Billy's 1979 separation from Elizabeth Weber, Billy went to her brother, Frank, and asked him to take control of his finances. Little did Billy Joel know that Frank would take millions and millions of his money and spend it without his permission. Then again, Billy had no reason not to trust him. The two were fairly close and Frank was even named as the godfather of Billy and Elizabeth's daughter, Alexa. So, Billy didn't think it was the worst decision to sign away total 'managerial control' of his finances to Frank. But given the fact that Billy left Frank's sister for model Christie Brinkley, he probably should've avoided the whole situation.

At least, that's what a few years' time proved...

According to the 83-page lawsuit, Billy sued Frank for $90 million, specifically for fraud and breach of financial duty. Among the many allegations in the suit was one that Frank took $10 million and invested in his ways that would benefit his own companies. Additionally, Bill alleged that Frank gave out loans to gas and oil tax shelters, real estate ventures, and even horse-breeding facilities... all of which had monetary interest or involvement by the former manager. One of these investments came back to bite Frank in the butt, as a hotel development let Billy know that he was liable for any potential losses.

Of course, Billy had no idea what they were talking about.

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To complicate matters further, Billy found that Frank was double-billing him for his music videos and was even cheating him out of various other fees, not limited to ones relating to travel and hotel expenses. On top of this, Frank created a bunch of financial statements that reported false information regarding Billy's true finances.

And Frank wasn't done there...

In the lawsuit, Billy alleged that Frank mortgaged his copyrights for a whopping $15 million without so much as mentioning it to him. So, while Frank was doing some truly shady dealings (mostly with enterprises he had a stake in) and mortgaging Bily's hard work and creativity without him knowing, he was also making $20 million in commissions.

Suing Frank And Ultimately Losing

Of course, Billy Joel sued Frank Weber! How could he not have? If he truly believed and had evidence of financial fraud on this level, he was right to go to recoup his losses. Billy sued Frank for $30 million for "Compensatory damage" and a whopping $60 million or "punitive damages".

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The suit was backed up by a private investigation of Frank Weber conducting by Billy Joel's high-powered attorneys. Leonard M. Marks, Billy's lead attorney, had repressed legal suits for a number of major artists and therefore Billy believed that he was in good hands. Leonard has gone on record saying that Frank Weber's fraudulence was the "worst" he's ever seen in the music business up until that point.

However, Frank had a decent lawyer o his own, Daniel A. Gecker, who told People in 1989:  "This whole thing ... is an effort to avoid paying Frank royalties on the upcoming LP and tour which are due under the management contract. The only grounds upon which the contract can be broken are to claim fraud, hence these accusations."

At the end of the day, Frank Weber, somehow, was able to get away with his activities. He filed for bankruptcy and the $90 million suit basically fell apart. Out of court, Billy settled for $8 million in damages, according to Fox News.

To add insult to injury, Frank later sued Billy for $30 million but it was dismissed in the court of law.

All of these financial troubles aside. Billy has been able to make back his losses and then some. He's gone on to become one of the most financially successful musical artists of his generation and has spent countless hours supporting various charities including North Shore Animal League.

Thanks to continued success in the music industry after his failed lawsuit, Billy was able to trade in his chevy for a Cadilac-ac-ac.

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