We've seen some amazing editions of Carpool Karaoke with passengers like Ed Sheeran and Harry Styles but these guys may have just been out-performed by kids.
Online support group Wouldn't Change a Thing brought James Corden to tears by sharing a video of their very own version of Carpool Karaoke ahead of World Down's Syndrome Day.
To raise awareness of the condition and to mark the day (March 21), Rebecca Carless compiled a video of her and 49 other mums with "50 ordinary four-year-olds" as they performed their best rendition of Christina Perri's 'A Thousand Years'.
After someone shared the video with James Corden on Twitter, the comedian and presenter showed his support while also admitting that the compilation made him cry.
"This is the most beautiful Carpool Karaoke," he wrote. "It made me cry. #wouldntchangeathing x"
Nawww! The video is super cute!!