You may already consider Dolly Parton as a country superstar, but did you know that she is actually worth quite a lot more than The Rolling Stones' Mick Jagger? Here are 10 filthy rich celebrities that you probably didn't know about, according to Business Insider.

1. Judge Judy

Estimated net worth: $250 million

Judge Judy, or Judith Sheindlin, is a former family court judge who now stars the popular courtroom series "Judge Judy". Each episode features Judy presiding over small-claim cases. She is known for her no-nonsense and wisecracking approach.  She reportedly earns $47 million annually.

2. Dolly Parton

Estimated net worth: $500 million

The writer and original singer of Whitney Houston's "I Will Always Love You", Dolly Parton is well-known for her work in country music.

3. Martin Lawrence

Estimated net worth: $110 million

Known for films like House Party, Bad Boys, Big Momma's House and a lot more, Martin Lawrence has made savvy career moves over the years despite the fact that we don't see much of him nowadays.

4.Keanu Reeves

Estimated net worth: $350 million

From "The Matrix" to "John Wick", Keanu Reeves has been labelled as one of the most bankable blockbuster stars of the past two decades.

5. Birdman

Estimated net worth: $150 million

A rapper, record producer and entrepreneur, Birdman co-founded Cash Money Records and is the ½ of Big Tymers. Among the hottest Hip-Hop artists belonging to the Cash Money roster are Lil Wayne, Drake, Nicki Minaj, Tyga, DJ Khaled, Young Thug, Bow Wow, Busta Rhymes and a whole lot more.

6. Gloria Estefan

Estimated net worth: $500 million

Gloria Estefan is a well-known Cuban-born singer, songwriter, actress and businesswoman. She may have long given up her popstar status, but Estefan remains legendary especially with her hit single "Conga".

7. Jessica Alba

Estimated net worth: $200 million

Surprisingly, Alba's didn't make most of her fortune out of acting, but with her venture - The Honest Company. It skyrocketed and is valued at $1 billion. Forbes even put her on the cover as one of America's richest self-made women.

8. Glenn Beck

Estimated net worth: $180 million

Glenn Beck's stake in media company Mercury Radio Arts and as well as his speaking gigs have made him one of the highest-valued men out there.

9. Jamie Oliver

Estimated net worth: $240 million

Even beating the famous Gordon Ramsey, Jamie Oliver is considered as the richest chef in UK.

10. Ray Romano

Estimated net worth: $120 million

As the executive producer of the sitcom "Everybody Loves Raymond" and a voice in the "Ice Age" films, Ray Romano is worth a lot.