· Prince is publishing 21 Nights, a compilation of photos, lyrics, and recordings from last year’s 21 concerts in 21 night in London.

· Leona Lewis, Queen, and Razorlight are confirmed to play Mandela’s 90th birthday party celebration. But surprise-guest rumors are running the gamut from Eminem to U2 and Amy Winehouse.

· Blondie is releasing a 30th-anniversary edition of Parallel Lines — and hitting the road for a US summer tour.

· Whoa — Tay “Chocolate Rain” Zonday has a new video, “Explode.” Kid is still intense.