Thre were ructions when Yes replaced their unwell singer with the frontman from a Yes tribute band, Close To The Edge.

I thought Benoit David was having a decent enough stab at a thankless task, but now he has gone above and beyond the call of duty by falling ill just as the band are about embark on the Asia-Pacific leg of their tour and the singer from Roundabout has been recruited to fill in for him.

http://www.glidemagazine.com/hiddentrack/transaction-report-yes-replaces...

The only think that would make it better is if Roundabout were not a Yes tribute band but a Close To The Edge tribute band.

The singer from Fragile must be making sure his diary is clear just in case...