On TV: Jessica Simpson, Lindsay Lohan, John Mayer

Pop acts on television this week include Jessica Simpson, who visits ‘Total Request Live’ on Monday and ‘The View’ on Wednesday; Lindsay Lohan, who is featured on ‘TRL’ on Monday; Ashlee Simpson, who visits ‘TRL’ on Tuesday; ‘American Idol’ season one champ Kelly Clarkson, who performs on ‘The Tonight Show with Jay Leno’ on Tuesday and ‘TRL’ on Wednesday; 98 Degrees star Nick Lachey, who visits ‘Live with Regis and Kelly’ on Wednesday; and John Mayer, who visits ‘Last Call with Carson Daly’ on Thursday.