An angry Kelsey Gammer walked out on Piers Morgan just minutes before he was scheduled to appear live on the CNN show.
So why did he bolt?
Apparently Grammer saw a photo of his ex-wife Camille during the beginning of the show, and decided he was out of there.
Morgan tweeted, "I like Kelsey Grammer personally, but this was a shockingly unprofessional thing to do. I wasn't even going to mention his ex-wife!"
A rep for Grammer told INSIDE EDITION, "Piers needs to take responsibility for what he did to Kelsey. It's called accountability."