On TV: Jessica Simpson, VMAs

Pop acts on television this week include Zero 7, who perform with Jose Gonzalez on ‘The Tonight Show with Jay Leno’ on Monday; the Best Music Guest who will be on ‘Live with Regis and Kelly’ for their Relly Awards; Jessica Simpson, who performs on ‘Total Request Live’ on Tuesday, ‘The Late Show with David Letterman’ on Wednesday, and ‘Today’ on Friday, and presents at the MTV Video Music Awards on Thursday; other pop acts who appear on the VMAs include presentations by Lindsay Lohan, Paris Hilton, the Pussycat Dolls, Jessica Simpson, Nick Lachey, and Jennifer Lopez, and performances by Shakira, Justin Timberlake, and Christina Aguilera.