Carrie Underwood, Rascal Flatts Will Appear as CBS Guest Stars Next Week

Carrie Underwood and Rascal Flatts will appear as guest stars on two popular CBS programs next week. Underwood will play the role of Tiffany, described in press materials as “an enigmatic pharmaceutical sales rep,” on How I Met Your Mother on Monday (March 1). Later in the week, Rascal Flatts will portray themselves on CSI: Crime Scene Investigation on March 4. The group partnered with CBS to produce a music video for their latest single, “Unstoppable.”