Jazz-rockers Steely Dan [ tickets ], who have embarked on two North American tours since 2003, look to be lining up a casino tour for early 2007.

So far, just two shows are on the schedule: Jan 17 at Table Mountain Rancheria Casino near Fresno, and Jan. 19 at Chumash Casino in Santa Ynez, CA.

According to Steely Dan's official website, the trek, which will feature the group's 10-piece band, will be dubbed Heavy Rollers 2007.

Billboard reports that The Rolling Stones [ tickets ]' A Bigger Bang tour was the top-grossing outing of 2006, raking in a worldwide gross of $437 million. Madonna [ tickets ]'s "confessions" tour took in $195 million to rank at No. 2.

Rounding out the Top 5 were Bon Jovi [ tickets ] ($131 million), U2 ($96 million), and Tim McGraw and Faith Hill's co-headlining trek (88.8 million).

Rankings were based on numbers reported to Billboard Boxscore by concert promoters.

Koral Karsen, a former chauffeur for Yoko Ono [ tickets ] has been imprisoned for allegedly threatening to release embarrassing recordings and pictures of her, and for threatening to have her killed if she didn't pay him $2 million, according to published reports.

Karsan's bail was set at $500,000 bond or $250,000 cash.

According to an Associated Press report, as he was being led from a Manhattan police station Wednesday (12/13), Karsan denied the allegations, and claimed Ono was trying to stop him from pursuing a sexual harassment case.