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Jamie Lynn Spears, 23, looked resplendent in her colorful mini-dress on the red carpet.
Stunning Shakira, 37, took the stage for "Medicine," a duet with her co-star on The View, Blake Shelton.
American Idol alum Kellie Pickler, 27, was lovely in lavender as she preened on the red carpet in Sin City.
The Band Perry -- siblings Neil Perry, Kimberly Perry, and Reid Perry -- kicked off Sunday's show with a rousing rendition of their track, "Chainsaw."
Married couple Keifer and Shawna Thompson, known as Thompson Square, put their best foot forward on the red carpet.
Keith Urban, who wrote three awards on the night, was dashing in black as he posed for photogs.
Sheryl Crow, 52, looked amazing in her black gown Sunday.
Country royalty Blake Shelton and Miranda Lambert take center stage; it was a busy night for the songstress, who collected three awards.
Jewel, 39, was a busty beauty in her sexy dress at the annual show.
Arguably the genre's biggest crossover star, 31-year-old Carrie Underwood, was the epitome of gorgeous glamour in her Oscar de la Renta gown.