Mike Yarish/FOX Matthew Morrison
The Tony Award-nominated Broadway star, 43, has exited the dance competition series after not following "competition production protocols."
"Having the opportunity to be a judge on So You Think You Can Dance was an incredible honor for me. Therefore, it is my deepest regret to inform you that I will be leaving the show," Morrison said in a statement shared with PEOPLE Friday.
"After filming the audition rounds for the show and completing the selection of the 12 finalists, I did not follow competition production protocols, preventing me from being able to judge the competition fairly," he added.
"I cannot apologize enough to all involved and I will be watching alongside you all on what I know will be one of the best seasons yet."
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The Glee alum leaves the series just over a week after the season 17 premiere, which aired May 18.
The breach of protocol was not further explained.
As most of this season's episodes were already pre-taped, Morrison will likely appear in episodes through mid-June, according to Entertainment Weekly, adding that his replacement is expected to be brought in for the second part of the competition's filming.
Lythgoe, who appeared as a permanent judge for 16 seasons, revealed in March that he "wasn't asked" to return for another season after the show picked up from its two-year hiatus due to COVID-19.
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"I am so thrilled that America's young aspiring dance talent will get to work with some of our greatest creative choreographers," he said on Twitter. "On a personally sad note, I have not been asked to be on the judging panel this season."