Pop acts on television this week include Coby Brown, who performs on ‘The Ellen DeGeneres Show’ on Monday; Cascada, who visits ‘Total Request Live’ on Monday and performs on ‘Live with Regis and Kelly’ on Thursday; Shakira, who performs ‘Hips Don’t Lie’ with Wyclef Jean on ‘TRL’ on Tuesday; Teddy Geiger, who performs on ‘The Late Show with David Letterman’ on Wednesday and ‘TRL’ on Thursday; and Natasha Bedingfield, who performs on ‘The Ellen DeGeneres Show’ on Thursday.