Union and fellow judge Julianne Hough will not return for the second season of "America's Got Talent: The Champions," which premieres January 6.Variety published a report this week alleging Union had been fired after urging the show's producers to notify human resources about an incident involving a racist joke. It also said producers told her multiple times that her hairstyles on the show were "too black." CNN has not independently confirmed these allegations and has reached out to reps for Union and "America's Got Talent" for comment. Here's what other celebrities are saying about her exit:
Ellen Pompeo
The "Grey's Anatomy" star blasted the network in a series of tweets. "Workplace cultures will continue to be toxic until there is unity and solidarity among all women. If you go for self in these moments you undermine the work we are out here trying to do. Obviously this network feels like they can operate like this and it's okay," she said. "… I support @itsgabrielleu commitment to speaking up to injustice. It takes courage."
Debra Messing
The "Will & Grace" star echoed Pompeo's sentiment."Thank you for this @EllenPompeo. This is disgusting behavior from a network that has been my professional home for decades," Messing tweeted. "Yes, women become 'difficult,' when their insistence on a respectful and professional working environment, is ignored. Addressing a hostile work environment is inconvenient when there is a huge money making machine that is involved."
Jameela Jamil
The actress, who stars on NBC's "The Good Place," said the show should bring Union back with a raise."I am lucky to work with really good people at @nbc and am sad and angry to know this has been going on in that same network. I stand with @itsgabrielleu," she said. 
Ariana Grande
The singer's message was short and ended with a love heart emoji aimed at Union."Thank you for this @EllenPompeo. be better @nbc we're with you @itsgabrielleu," she said. 
Julian Castro
The 2020 presidential hopeful also chimed in."Corporate America tells employees and consumers they take racism and sexism seriously. But often the person reporting the problem is hurt by management," Castro tweeted. "Kudos to @itsgabrielleu for having the courage to speak out. Still waiting for answers from @nbc." 
Dwyane Wade
Union's husband said he still has questions about her exit from the show. "… WRead More – Source
