Kelsey Grammer "ran out" on an interview after seeing a picture of his former wife.
The former Frasier star was due to be interviewed by Piers Morgan for CNN's Piers Morgan Tonight but became so uncomfortable after seeing a photograph of his ex Camille Grammer that he left the building before filming began.
Piers wrote on twitter: "Kelsey Grammer was supposed to be on my show now but ran out of the building. Strange. #CNN "So, 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. #CNN (sic)."
When Piers' former America's Got Talent co-star Simon Cowell responded by saying "I know how he feels", Piers joked it was possible Simon's new show The X Factor which scared him off.
He wrote: "I suspect Kelsey was watching X Factor in the green room and suddenly felt nauseous."
However, when the music mogul offered to intervene, tweeting "if he was watching x factor he wouldn't have done a runner. Do you want me to call him for you?", the chat show host was quick to respond "Yes please".
The 57-year-old actor has previously launched a number of verbal attacks against Camille - with whom he has two children, daughter Mason, 10, and seven-year-old son Jude - recently, saying their marriage was over almost as soon as it began and he only stayed with her out of obligation.