The singers will return to Studio 8H on May 11 as the musical guests.
ET spoke with Clarkson at the press day for the animated film 'UglyDolls,' in theaters May 3.
The 'UglyDolls' star says his wife's close bond with his brother's fiancee is 'a beautiful thing.'
ET spoke with Jonas at the press day for the animated film, 'UglyDolls,' in theaters May 3.
Some music and entertainment A-listers are using their voice to spread awareness and support.
Check out the family's visit to Happy Valley!
Take a look at the trio's brand-new music video!
Turner and her 'Game of Thrones' star, Maisie Williams, cover the latest issue of 'Rolling Stone.'
The Jonas Brothers are going from the 'Year 3000' to the 1980s!
The 'Fuller House' star may have just won this troll war.
ET opens its vault to revisit Nick, Joe and Kevin's early interviews, tracking their rise to superstardom.
The 'Sucker' singers spilled many personal details during their press tour and on 'The Late Late Show with James Corden' this week.
The 'Game of Thrones' actress opened up in Glamour UK about pushing past a low point in her life thanks to her man.
James Corden asks all the best questions during the brothers' musical segment.
