Kelsey Grammer walks out on Piers Morgan

New feud alert!

Kelsey Grammer was scheduled to appear on Piers Morgan Tonight yesterday. But right before the Boss star was due to appear on camera, he apparently stormed away from Morgan's show in a huff — all because the program showed a picture of Grammer's ex wife Camille in its opening. Morgan himself explained what had happened in a pair of tweets sent shortly after Grammer made his exit.

"I had a very friendly chat with Kelsey backstage. He said he was really looking forward to the interview. Weird," he tweeted after learning why Grammer had bailed. A few minutes later, Morgan continued: "I like Kelsey Grammer personally, but this was a shockingly unprofessional thing to do. I wasn't even going to mention his ex-wife!"

Morgan still hasn't let go of the incident as of this morning. "Anyone found Kelsey Grammer yet?" he tweeted. An hour and a half later, he announced that he will appear on Late Night with Jimmy Fallon this evening — "and relax, Jimmy, unlike my guest Mr. Grammer last night, I won't run away."

When asked for comment, a rep for Grammer gave EW this statement: "Piers needs to take responsibility for what he did to Kelsey. It's called accountability."

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