Country star and bona fide cutie Carrie Underwood is ready to make her acting debut on an upcoming episode of How I Met Your Mother, according to People!

Underwood will play Tiffany, an enigmatic pharmaceutical sales rep and love interest for Ted (played by Josh Radnor), in an episode scheduled to air this March.

Unfortunately for Ted, she's probably not sticking around to be The Mother, but in real life, Carrie just got engaged to NHL star Mike Fisher! Congratulations, girl!

The CBS comedy returns Monday for its 100th episode, when Stacy Keibler will guest star.

Rachel Bilson, who some fans think will be The Mother, will also appear. We can't wait!

How I Met Your Mother's guest starring ranks just got even cuter!

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.