Justin Bieber has performed more than 150 shows in 40 countries across six continents and 16 months on his “Purpose” world tour. But the final 14 scheduled dates were just too much.

On Monday, he canceled his remaining concerts for this year, which were spread across four months and included shows in East Rutherford, N.J., Hong Kong and Singapore, citing only “unforeseen circumstances.”

“Justin loves his fans and hates to disappoint them,” a statement sent by a publicist said. “However, after careful consideration he has decided he will not be performing any further dates. Tickets will be refunded at point of purchase.” (Last week, Mr. Bieber had been barred from performing in mainland China because of past “bad behavior.”)

Fan reaction to the news was swift and plentiful online, split along the lines of disappointment and understanding. On Instagram, where Mr. Bieber was most recently shirtless on a hike and at 7-Eleven, commenters flooded his page with purple heart emojis and messages like, “We respect your decisions.”