Pop star Adam Lambert has axed an upcoming gig in Philippines due to "unforeseen circumstances".

The former American Idol contestant was due to perform at the Skydome venue in the capital city of Manila on 1 March (13), but he has now cancelled the show and fans are being offered refunds.

A statement from SM Tickets, the promoters behind Lambert's show, reads, "Please be informed that due to unforeseen circumstances, (the) Adam Lambert concert on March 1, 2013 at... Skydome is cancelled."

No further details about the reason for cancellation were available as Wenn went to press.

Lambert previously performed in the country in 2010.