Cyrus picks up some school supplies at an Office Depot in Los Angeles. Plus: Jessica Simpson, Nicole Richie and Jay-Z, Matt Damon and more

'CRUNCH' TIME

Ashton Kutcher and wife Demi Moore add a dose of celebrity to the TechCrunch 50 conference, attending a VIP dinner at San Francisco's Design Center on Monday. At the conference, the actor unveiled his latest project, a new celebrity culture Web site called Blah Girls and met with MySpace CEO Chris DeWolfe.