For Carrie Underwood's performance, the singer wore a Jani Khosla gown with a Haute Hippie neckpiece.
Photo: Getty Images
2/23
Jamie-Lynn Spears
Photo: Getty Images
3/23
Lady Antebellum
Hillary Scott rocked a Roberto Cavalli dress, Stuart Weitzman shoes and Jacob & Co. jewelry. Charles Kelley donned a Zanerobe top and Dolce & Gabbana pants. Dave Haywood wore a Zegna jacket and Ksubi jeans.
Photo: Getty Images
4/23
Kelsea Ballerini
Photo: Getty Images
5/23
Nicole Kidman wore head-to-toe Balenciaga with Fred Leighton jewelry.
Photo: Getty Images
6/23
Jenna Dewan-Tatum stunned in a Zuhair Murad Spring 2015 purple slip gown.
Photo: Getty Images
7/23
Nikki donned a Kaufmanfranco dress, Brian Atwood shoes and a Swarovski clutch.
Photo: Getty Images
8/23
Little Big Town
Photo: Getty Images
9/23
Hunter Hayes
Photo: Getty Images
10/23
Luke Bryan and Jason Aldean
Photo: Getty Images
11/23
Sam Hunt
Photo: Getty Images
12/23
Birttany Snow in Monique Lhuillier bandeau and skirt
Photo: Getty Images
13/23
Rumer Willis in a House of CB strapless dress
Photo: Getty Images
14/23
Kellie Pickler
Photo: Getty Images
15/23
Carrie Underwood wore a Thomas Wylde dress, Jimmy Choo shoes, a Deepa Gurnani clutch and Kimberly McDonald jewelry.
Photo: Getty Images
16/23
Dierks Bentley
Photo: Getty Images
17/23
Ashley Monroe
Photo: Getty Images
18/23
Neil Perry, Kimberly Perry and Reid Perry of The Band Perry
Photo: Getty Images
19/23
Erin Andrews rocked a Mugler gown, Manolo Blahnik shoes and Martin Katz jewelry.
Photo: Getty Images
20/23
Lee Ann Womack
Photo: Getty Images
21/23
Cassadee Pope in a Mikael D dress
Photo: Getty Images
22/23
Laura Bell Bundy accessorized her jumpsuit with a Kotur clutch.
Photo: Getty Images