Fox executives were none to pleased when they heard Dancing with the Stars host Tom Bergeron discuss the possibility of Paula Adbul appearance on the seventh season of DWTS on Ryan Seacrest’s syndicated morning radio show last month. Tom said ABC would be thrilled to have the veteran choreographer and American Idol judge on the hit ballroom-dance reality series. Fox is having none of it. The Idol star has been forbidden from appearing on the rival network.

“They told Paula, ‘You work for US! You’re the star of OUR show. Let ABC find someone else,” The National Enquirer reports.

“She thought her appearance on a rival network might be great crossover publicity for Idol-but that’s not how producers saw it.”