It was recently revealed that the reunited boyband will represent the UK at this year's competition with a self-penned song titled 'I Can'.
The band's ex-manager Daniel Glatman called the move "reckless insanity" and claimed that the performance is a big gamble.
"They will have to win. Anything less and their reputation would be in tatters," PA quotes him as saying.
"It is the equivalent of Lewis Hamilton entering a go-kart race - he will be the strong favourite but there is also the possibility he could lose - so why risk it?"
Blue could be up against former X Factor duo Jedward, who are in the running to represent Ireland with their track 'Lipstick'.