Sam Hunt, Luke Bryan, Kelsea Ballerini and Chris Stapleton will also take the stage on June 6.
Clarkson was beaming with pride backstage at 'The Voice,' just moments after 15-year-old Cartelli took home the top prize.
Plus, how Miley Cyrus wrecked Jimmy Kimmel's dreams Monday night.
Kelly Clarkson isn't afraid to get candid about her svelte, new look.
From high energy performances, to reflective tributes, the 2018 BBMAs delivered several unforgettable moments.
Here are the performances, speeches and outfits that dominated Sunday's BBMAs.
From sexy to sophisticated, music's hottest artists brought serious style to the red carpet in Las Vegas.
The 36-year-old singer opened the 2018 BBMAs asking for change after 10 people were killed and 13 were injured on Friday, as a result of a shooting at Santa Fe High School in Santa Fe, Texas.
Clarkson was the first 'American Idol' winner in 2002.
From sexy to sophisticated, stars like Jennifer Lopez, Taylor Swift, Janet Jackson and more served up some seriously fierce fashion!
The singer ran through nominated songs, covering everyone from Kendrick Lamar to Maren Morris and wowing the crowd in her opening monologue.
The singer couldn't hold back her tears while addressing the tragic mass shooting at a school in Texas on Friday that claimed the lives of 10 people and injured 13 others.
Celebrities weren't afraid to take chances with their red carpet outfits on Sunday.
Check out what some of the biggest names in music wore on the red carpet at this year's Billboard Music Awards in Las Vegas on Sunday!
