Over the years, Kelly Clarkson has gotten to sing with some amazing artists, but she says the duet she recorded the other day for The Kelly Clarkson Show is one of her top moments ever — and she can’t stop watching it.

Kelly teamed up with Grammy-winning singer/songwriter Brandi Carlile to sing “Poison & Wine,” a song originally recorded by the now-defunct duo The Civil Wars.  She then retweeted the performance and wrote, “This is one of my favorite moments singing that I have experienced in my entire existence on this planet. I am honestly embarrassed at how many times I’ve watched this.”