Len Goodman, long-time lead judge of "Dancing with the Stars," has "passed away peacefully," Fox News Digital can confirm.

His agent Jackie Gill shared the news Monday morning. Goodman had been diagnosed with bone cancer.

<div class="m"><picture><source media="(max-width: 767px)" srcset="https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2023/04/343/192/GettyImages-1235702821.jpg?ve=1&amp;tl=1, https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2023/04/686/384/GettyImages-1235702821.jpg?ve=1&amp;tl=1 2x"><source media="(min-width: 767px) and (max-width: 1023px)" srcset="https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2023/04/672/378/GettyImages-1235702821.jpg?ve=1&amp;tl=1, https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2023/04/1344/756/GettyImages-1235702821.jpg?ve=1&amp;tl=1 2x"><source media="(min-width: 1024px) and (max-width: 1279px)" srcset="https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2023/04/931/523/GettyImages-1235702821.jpg?ve=1&amp;tl=1, https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2023/04/1862/1046/GettyImages-1235702821.jpg?ve=1&amp;tl=1 2x"><source media="(min-width: 1280px)" srcset="https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2023/04/720/405/GettyImages-1235702821.jpg?ve=1&amp;tl=1, https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2023/04/1440/810/GettyImages-1235702821.jpg?ve=1&amp;tl=1 2x"> <img src="https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2023/04/640/320/GettyImages-1235702821.jpg?ve=1&amp;tl=1" alt="Len Goodman smiles on Dancing with the Stars set" width="100%" height="auto"></picture></div> <div class="info"><div class="caption"><p><span>Len Goodman had been battling bone cancer.</span> <span>(Christopher Willard/ABC)</span></p></div></div>

During season 31 this past fall, Goodman announced he would be retiring from the show with the intention of spending more time with his family.

<i>This is a developing story. The Associated Press contributed to this report.</i>

<div class="author-bio"><p>Caroline Thayer is an entertainment writer for Fox News Digital. Follow Caroline Thayer on Twitter at @carolinejthayer.</p></div>

Len Goodman, known for his 31 seasons as judge of "Dancing with the Stars" has passed away at 78.

Len Goodman, 'Dancing with the Stars' head judge, dead at 78

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