On TV: Jessica Simpson, Paula Abdul, Clay Aiken

Pop acts — and ‘American Idol’ judges — on TV this week include Jessica Simpson and 98 Degrees star Nick Lachey, who appear on ‘The View’ and ‘The Late Show with David Letterman’ on Monday; Simon Cowell, who appears on ‘The Tonight Show With Jay Leno’ on Monday and ‘The View’ on Wednesday; Randy Jackson, who appears on ‘The Ellen DeGeneres Show’ on Tuesday; Paula Abdul, who appears on the ‘Late Show’ on Tuesday and ‘The View’ on Friday; Clay Aiken, who appears on ‘The Tonight Show’ on Wednesday; and Cyndi Lauper, who appears on ‘Last Call with Carson Daly’ on Friday.