Kelsey Grammer Bolts from Piers Morgan Interview Over Camille Grammer Pic

Kelsey Grammer allegedly just stormed out of CNN's studios in NYC moments before his scheduled interview with Piers Morgan -- and according to Morgan, it was all because producers aired a pic of Kelsey's ex-wife at the start of the show.

Morgan took to Twitter to explain Kelsey's absence tonight, writing, "Kelsey Grammer was supposed to be on my show now but ran out of the building. Strange."

He continued, "Kelsey Grammer saw a photo of his ex wife Camille in the open to our show and legged it. Extraordinary. Never had this happen before."

"I had a very friendly chat with Kelsey backstage. He said he was really looking forward to the interview. Weird."

He added, "I like Kelsey Grammer personally, but this was a shockingly unprofessional thing to do. I wasn't even going to mention his ex-wife!"