Event production company Ace Music Production recently shared the news on Facebook. The announcement stated, 

"We regretfully inform you that Gary's 1st Concert in Malaysia scheduled for May 21st has been canceled due to unforeseen circumstances. 

To all the waiting fans and affected parties, we sincerely apologize for the inconvenience and disappointment this has caused you all. 

Please refer to the information below for all refunds and Ace Music Production's promises to process them promptly. 

We thank you for understanding and apologize again for the cancellation of Gary's 1st Concert in Malaysia 2017. 

We hope to meet you see you again under better circumstances."

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The reason behind the abrupt cancellation is unknown. Meanwhile, Gary recently shocked the public with his unexpected marriage news.