United Kingdom, Feb. 19 -- The Wanted 2.0 have postponed their first UK concert due to Max George recovering from his second heart operation.

The 36-year-old singer was set to perform as part of the two-man lineup of the 'Glad You Came' boy band alongside bandmate Siva Kaneswaran, also 36, at Manchester Cathedral on February 27.

Unfortunately, Max's latest surgery has "set [him] back a little bit" and he won't be fit enough in time to play the gig.

In a video update on social media, Max said: "My second heart opp has just set me back a little bit with my recovery, and I'm just not going to be well enough in time. Yeah, [I'm] obviously so gutted."

The pair vowed to reschedule the show in the "near future".

Max continued: "Me and Siva ...