EDIT: I misread it, not the richest but basically how much money they generated from revenue.
To determine which acts made Forbes’ list of 2006’s biggest moneymakers in music--in which we look at the cash they generated, rather than what flows into their bank accounts--we turned to concert trade magazine Pollstar, which calculates the North American tour grosses, and Nielsen SoundScan, which tracks U.S. album and digital sales. A big caveat: The list does not include music and ticket sales from the rest of the world. But figure that most of the top acts on this list do as well proportionately across the globe as they do in the U.S. Also not included: revenue from sponsorship, merchandise sales and mobile sales.
1. The Rolling Stones, $150.6 million
Mick, Keith and company don't sell many discs these days, but they have little trouble luring fans to see them live. Their “A Bigger Bang” tour grossed $138.5 million last year.
2. Tim McGraw/Faith Hill, $132 million
The married duo joined forces for a 55-city tour, which grossed $88.8 million. But more fans may have been coming out to see McGraw, who sold $34.3 million worth of discs last year, than for Hill, who sold $8.9 million worth of albums
3. Rascal Flatts, $110.5 million
The country trio sold 5 million albums and another 4 million digital tracks last year, making them the biggest selling act of the year. They did all right on the road, too, generating $43.6 million
4. Madonna, $96.8 million
Madonna tends to generate more headlines than record sales these days--you are more likely to have heard about her adoption travails than have bought one of her albums. But her $85.9 million, 14-city “Confessions” tour proves that some fans aren't satisfying seeing her in tabloids--they want to see her live. 
5. Barbra Streisand, $95.8 million
Streisand, who supposedly had retired from the stage, found a reason to get back out and do 20 more shows. Perhaps it was the average of $4.5 million she generated at each gig.
6. Kenny Chesney, $90.1 million
The country crooner grossed $66 million touring the U.S., where he played for 1.1 million fans in 54 cities.
7. Celine Dion, $85.2 million
The Canadian songstress managed to rake in $78.1 million, without once leaving Sin City
8. Bon Jovi, $77.5 million
Unlike some of music’s top earners, Bon Jovi continues to sell records and concert tickets. (Erm, then why say that about Madge?) Playing 39 shows for close to 800,000 fans, the well-coifed '80s sensation generated nearly $60 million on the road last year.
9. Nickelback, $74.1 million
The group gets no respect from critics, but it doesn't need it. In addition to $40.1 million in album sales, the Canadian rockers grossed $30.3 million touring the United States, where they played for close to 800,000 fans in 79 cities.
10. Dave Matthews Band, $60.4 million
The world's most preeminent jam band sells out stadiums year after year.
