Pop acts on television this week include Paris Hilton, who visits ‘The Late Show with David Letterman’ on Monday, ‘Live with Regis and Kelly’ on Tuesday, and ‘The View’ on Thursday; Hi-5, who perform on ‘Today’ on Monday; Jeannie Ortega, who is featured on ‘Total Request Live’ on Tuesday; Fiona Apple, who visits ‘Last Call with Carson Daly’ on Tuesday and ‘Jimmy Kimmel Live’ on Friday; K.T. Tunstall, who performs on ‘The Tonight Show with Jay Leno’ on Wednesday; Regina Spektor, who performs on ‘Late Night with Conan O’Brien’ on Wednesday; Britney Spears, who as mentioned earlier is on ‘Dateline NBC’ on Thursday; Matt Costa, who performs on ‘Last Call’ on Thursday; Prince featuring Tamar, who perform on ‘Good Morning America’ on Friday; Jennifer Love Hewitt, who visits ‘The Tonight Show’ on Friday; and Nelly Furtado, who performs on ‘The Tonight Show’ on Friday.