So You Think You Can Dance choreographer/judge Mia Michaels’ shaved head seen in last night’s episode of SYTYCD (video) has rumors swirling that Michaels has cancer. Her newly shaved head has fans concerned – is the reason she’s left the show cancer or some other illness… or has Mia Michaels moved on to other opportunities?

While there’s been no confirmation that Mia Michaels’ shaved head is anything more than a new haircut, we do of course know that Mia took to Twitter to announce that she’s leaving So You Think You Can Dance, saying that she looked forward to what was ahead of her.

Mia Michaels posted this on Wednesday night on Facebook:

“It’s been an amazing five years on SYTYCD. I thank them for all the great memories and movement I have been able to create for the world. Today was my official resignation of the U.S. show and look forward to what’s ahead for me.”

On Twitter, she had announced: “I AM OFFICIALLY AN ADORING FAN OF SYTYCD….THANK U FOR 5 WONDERFUL YRS… TO CREATE MOMENTS AND MOVEMENT FOR THE WORLD TO SHARE WITH ME WAS A GIFT…THANKS SYTYCD AND LOOK FORWARD TO WHATS AHEAD FOR ME…LOOKOUT WORLD!!!!!”