CMA Female Vocalist of the Year Carrie Underwood will perform at the 50th Annual Grammy Awards it was announced yesterday. It is not known what Underwood will perform.

Underwood is featured in an ad campaign featuring country legend Tammy Wynette, a Grammy winner herself.

The Grammy Awards air Sun., Feb. 10, on CBS.

Nominated for two Grammy awards this year, Underwood is currently headlining her own tour as well as touring with Keith Urban. Her current single, "All-American Girl," is headed for the top 10 on Billboard. The video, which debuts on CMT this week, features Underwood in 31 different outfits.

Underwood's "Carnival Ride" is double platinum.

Labels: Carrie Underwood