On TV: Ashlee Simpson, Alanis Morissette, John Mayer Trio

Pop acts on television this week include Ashlee Simpson, who performs on ‘The Late Show with David Letterman’ on Monday and ‘The View’ on Tuesday; The Eurythmics, who perform on ‘The Tonight Show with Jay Leno’ on Monday and ‘Today’ on Friday; Alanis Morissette, who performs on ‘Live with Regis and Kelly’ on Monday; Cyndi Lauper, who performs on ‘The Ellen DeGeneres Show’ on Monday; ‘American Idol’ season four champ Carrie Underwood, who performs on ‘Today’ on Tuesday and ‘The View’ on Wednesday; John Mayer Trio, who perform on ‘The Late Show’ on Thursday; Lindsay Lohan, who visits ‘The Tonight Show’ on Thursday; and Jennifer Love Hewitt, who visits ‘The Late Late Show with Craig Ferguson’ on Thursday.