The 25-year-old, whose band’s official Sport Relief single, ‘Proud,’ charted at six in the UK on Sunday, told the Daily Star that he’s taken to creating his own menus to ensure he’s in peak condition for the 13-date arena tour.  

“I’ve set myself a new diet where I eat clean foods and only drink water six days a week.

“I also do Bikram yoga and martial arts.

Oritse, who last week revealed he’s pitched a song he's written to Usher, also admitted he’s prepared to stick to his routine, no matter what the time of day:

“When we were last in America I thought: ‘If I have an alcoholic drink, I’ll need to burn this off’ so went straight to the gym at 3am after being in the club.”