On TV: John Mayer, Maroon 5, Lily Allen

Pop acts on television this week include John Mayer, who performs on ‘The Tonight Show with Jay Leno’ on Monday; Maroon 5, who perform on ‘The Late Show with David Letterman’ on Tuesday; Feist, who performs on ‘Late Night with Conan O’Brien’ on Tuesday; the Puppini Sisters, who perform on ‘The View’ on Tuesday; James Morrison, who performs on ‘The Tonight Show with Jay Leno’ on Wednesday; Lily Allen, who visits ‘The Sauce’ on Wednesday; Andrew Bird, who performs on ‘Late Night’ on Thursday; ‘American Idol’ season six champ Jordin Sparks and runner-up Blake Lewis, who visit ‘The View’ on Thursday; Enrique Iglesias, who performs on ‘Today’ on Friday; and Avril Lavigne, who performs on ‘The Tonight Show’ on Friday.