On TV: Jessica Simpson, Evan And Jaron, Christina Aguilera

Pop acts on television this week include Jessica Simpson, who appears on ‘The View’ with her husband Nick Lachey of 98 Degrees on Tuesday and alone on ‘The Tonight Show with Jay Leno’ on Wednesday; Evan and Jaron, who perform on ‘The Late Late Show with Craig Kilborn’ on Wednesday and appear as the Everly Brothers on ‘American Dreams’ next Sunday; Britney Spears, who makes another appearance on MTV’s ‘Total Request Live’ on Wednesday; the first ‘American Idol’ finalist to be eliminated will be on ‘On Air with Ryan Seacrest’ on Thursday; and Christina Aguilera, who will be performing on ‘The Ellen DeGeneres Show’ on Friday. Also this week will be a Spring Break special on ‘Live with Regis and Kelly’, including re-runs of a Britney Spears appearance on Monday, Pink and Hilary Duff on Tuesday, and Mandy Moore and Dido on Wednesday.