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.