Stuff we missed over the weekend

The new Harry Potter is the fastest-selling book ever, selling 8.3 million copies in the US in 24 hours. (Reuters)

Hip-hop schadenfreude time: Both Ja Rule and Lil Wayne were arrested Sunday night. (Associated Press)

Jeff Tweedy plays rock critic for The New York Times, but fails to mention that the first band reviewed, Dr. Dog, is opening a string of tour dates for Wilco soon. He does reveal, though, that he's "probably the only person that wanted to be a rock critic and failed at it and started a band."