The Stay With Me hitmaker postponed several dates on his Australian tour in April (15) after doctors discovered his throat problems, and Smith has been resting his voice in a bid to be back on form for his shows in Japan and the Philippines this week (beg04May15).

However, those dates have now been called off so he can visit a specialist in America.

In a post, he writes, "Very upset about Japan and Manilla dates. I've just left Australia and I'm on my way to the States to see a specialist to see what to do from there... This is f**king horrid."