Have you ever wondered how much your mega-stars of music make?  Well, so has Forbes.

They have now published their put annual list of The World's Highest-Paid Musicians . . . and not surprisingly, U2 came out on top.  Again.

From May of last year to last month, U2 raked in $195 million, which is up from the $130 million that they pulled down the year before, when they were also ranked #1.

BON JOVI came in second with $125 million.  

Forbes calculates their numbers by compiling pre-tax profits on stuff like concert dates, merchandise sales, licensing fees, music sales, and publishing royalties . . . but almost everyone on the list made the bulk of their money from touring.

Here's the complete list:

1.)  U2 . . . $195 million

2.)  Bon Jovi . . . $125 million

3.)  Elton John . . . $100 million

4.)  Lady Gaga . . . $90 million

5.)  Michael Bublé . . . $70 million

6.)  Paul McCartney . . . $67 million

7.)  Black Eyed Peas . . . $61 million

8.)  Eagles . . . $60 million

9.)  Justin Bieber . . . $53 million

10.)  Dave Matthews Band . . . $51 million

11.)  Toby Keith . . . $50 million

12.)  Usher . . . $46 million

13.)  Taylor Swift . . . $45 million

14.)  Katy Perry . . . $44 million

15.)  Brad Paisley . . . $40 million

16.)  Tom Petty & the Heartbreakers . . . $38 million

17.)  Jay-Z . . . $37 million

18.)  A five-way tie between AC/DC, Diddy, Beyoncé, Tim McGraw and Muse . . . $35 million

23.)  Rascal Flatts . . . $34 million

24.)  Kenny Chesney . . . $30 million

25.)  Rihanna . . . $29 million

(--For a little more information on each musician's earnings, hit up Forbes.com's slideshow, beginning here.)