This is Adele. She's a singer you might've heard of.
And this is George Michael, the legendary singer who tragically passed away Christmas Day, 2016.
For his 2017 Grammys tribute, Adele started to sing his song "Fastlove."
It sounded amazing, as Adele usually does.
But right before she hit the first chorus, Adele stopped the music.
I can't do it again like last year. I'm sorry for swearing and I'm sorry for starting again. Can we please start it again? I'm sorry, I can't mess this up for him. I'm sorry. I can't. I'm sorry for swearing. I'm really sorry.