· Mos Def is going to have to start learning the duck walk. He has signed on to play rock pioneer Chuck Berry in Cadillac Records, a movie about the influential blues and rock label, Chess Records, and the Chicago music scene in the 1950s. Gabrielle Union, Adrien Brody and Cedric The Entertainer co-star. Meanwhile, at a headlining gig last night in New York City, Mos previewed new, unreleased material and promised that his new album will be out this summer. We believe him.

· U2 already have more money than you and everyone you know, combined, ever will in your entire lifetime. And now, they will have even more. The band have formalized a deal with concert promoters Live Nation for merchandising, branding and digital rights (let’s call this a 270-degree deal; U2 will continue to release albums on their label, Universal), reported at $100-million/12-years. Live Nation, who recently signed Madonna to a (reportedly) $120-million/10-year deal, has promoted U2’s tours since the mid-1980s. Said Bono, “We’ve been dating for over 20 years now, it’s about time we tied the knot.”

· Beanie Sigel is back behind bars. The rapper, who spent a year in jail after a 2004 drug and weapons conviction, was in court on Friday where a judge sentenced him to three months in prison for allegedly giving a fake urine sample to his probation officer on February 29, and testing positive five times earlier in March for controlled substances, including Xanax and the pain killer Percocet. Faking a urine sample, not The Solution.