SM Entertainment

“These past 10 years will remain one of the most precious chapters of my life,” the star said in a letter to fans.

Both the star and some of his teammates have taken to social media to address the sudden news.

The news comes a month after SM Entertainment announced his exit from the group.

It's their world and we're just living in it.

They’re on top of the beat.

"If you turned off the lights in your room... it felt like you were really there.”

"I feel like that's the true role of K-pop: bringing cultures together.”