Len Goodman has blasted Simon Cowell for poaching Alesha Dixon, and declared: "Shame on you."
The Strictly Come Dancing judge branded the media mogul's actions "spiteful" after Simon said he brought Alesha to Britain's Got Talent to hurt his dance rival.
Len - who is an acquaintance of the talent show boss - told Radio 5 Live that he was "disappointed" in Simon if that was his motivation.
He also accused X Factor creator of spoiling the pleasure of millions of viewers.
Alesha walked out on Strictly earlier this month in a shock move after three years with the series.
Speaking about his signing, Simon said: "My decision to poach her was 70-30 on the fact she was on Strictly and the fact I liked her.
"With us and the BBC, I laugh about it, but there is unbelievable rivalry now. They want to be number one, I want to be number one. We do what it takes."
Len said he would welcome a return to Strictly for choreographer Arlene Phillips. The 68-year-old was axed from the judging panel and replaced by Alesha, 35 years her junior, which led to accusations of BBC ageism.
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