Two additional presenters at the 2011 ACM Awards have been announced, and one is sure to surprise you. 'Walk the Line' star and Nashville native Reese Witherspoon will be presenting alongside everyone's favorite vampire, Robert Pattinson.

The duo, who co-star in the upcoming film 'Water for Elephants,' will be joining fellow presenters Ryan Seacrest and Nancy O'Dell. Reba McEntire and Blake Shelton are hosting the show, and Carrie Underwood and Zac Brown Band will be performing in addition to several other artists.

Witherspoon's presence at the show is not that surprising, considering she is from Nashville and portrayed June Carter Cash in 'Walk the Line.' On the other hand, we are definitely perplexed by Pattinson's presence. The British actor has become a worldwide heartthrob thanks to his role as the mysterious and tortured vampire Edward Cullen in the 'Twilight' film series.

For more updates on the 2011 ACM Awards, which will air on April 3 on CBS at 8PM ET, stay tuned to Taste of Country.