I’M BURNIN’ ON YOU Madge, John (inset)

• Mamma don’t preach: Starting her “Sticky Sweet” tour on Saturday night, Madonna took aim at John McCain, featuring his picture in a video montage alongside images of Adolf Hitler, Robert Mugabe, and global warming.

• On deck: The Beijing Olympics come to a close, and the world tells London to get its act together for 2012. Jury’s still out on your hosting duties, Russia.

• Biden numbers: In the first national poll since Barack Obama announced Joe Biden as his running mate, Obama and McCain are tied at 47 percent.

CLICKING HERE IS A GOOD IDEA: Marc Jacobs likes Marc Jacobs; George Michael ending it all?; a text-walking epidemic; Apple’s keeping secrets; and something’s happening in Georgia!