There's clearly money to be made in country music. Forbes have revealed their list for the highest-paid musicians in 2013, and not surprisingly, several of country music's hitmakers made the cut.

Toby Keith is the highest country artist on the list, coming in at No. 4, with an estimated earning of $65 million. In the last five years, Keith has pulled in a whopping $270 million, thanks to his albums, I Love This Bar & Grill restaurant chain and sold-out concerts.

Taylor Swift lands at No. 8. The songstress earned an impressive $55 milllion due to her multi-platinum selling album, 'Red,' and the record's accompanying worldwide tour, as well as endorsement deals with Sony, Diet Coke and Cover Girl.

Kenny Chesney is only two places, and two million dollars behind Swift. The Tennessee native takes the tenth spot, with annual earnings of $53 million. In addition to his sold-out No Shoes Nation stadium tour this summer, Chesney also launched his own line of rum, Blue Chair Bay, earlier this year.

Tim McGraw rounds out the Top 25. The 46-year-old ties with pop sensation Pink, making $32 million this year. McGraw released his debut album, 'Two Lanes of Freedom' on Big Machine Records, and launched his Two Lanes of Freedom Tour, as well as continued his Soul2Soul show in Las Vegas with his wife, Faith Hill.

Outside of country music, Madonna took the top spot on the list, making $125 million. Lady Gaga landed the second spot, with $80 million, with Bon Jovi at No. 3 with $79 million.