On TV: Feist, Colbie Caillat, Mandy Moore

Pop acts on television this week include Aly & AJ, who co-host ‘Total Request Live’ all week; Feist, who performs on ‘The Late Show with David Letterman’ on Monday; Colbie Caillat, who performs on ‘The Tonight Show with Jay Leno’ on Monday; Ben Harper and the Innocent Criminals, who perform on ‘The Tonight Show’ on Tuesday; Mandy Moore, who visits ‘Jimmy Kimmel Live’ on Wednesday; Mat Kearney, who performs on ‘The Tonight Show’ on Wednesday; and Elliott Yamin, who visits ‘The Sauce’ on Thursday.