American Idol champion, Carrie Underwood, wore a beautiful Jean Fares purple dress on the red carpet of the 2011 Academy of Country Music Awards held at MGM Grand Garden Arena in Las Vegas on Sunday (April 3)- more pictures below.

BEST Dressed & WORST Dressed At 2011 ACM Awards Red Carpet (PHOTOS)

The 28 year-old country star, who just made her movie debut in “Soul Surfer”, was introduced by fellow co-star AnnaSophia Robb and the real-life soul surfer, Bethany Hamilton, who lost her arm in a brutal shark attack when she was only 13 years old.

46th Academy Of Country Music (ACM) Awards: Winners 2011

Carrie rocked the stage with a performance of her hit “Undo It” before new Idol judge, Aerosmith’s frontman Steven Tyler, joined her for the second half of the song. The unexpected duo also performed one of the rocker’s classics, “Walk This Way” (watch video here).

Carrie Underwood & Steven Tyler “Undo It/Walk This Way” At 2011 ACM Awards (VIDEO)

Carrie Underwood At 2011 ACM Awards Pictures

[images: Judy Eddy/wenn.com]