JESY Nelson was "injected with painkillers 50 times" before going on stage. The ex Little Mix star, 29 - who quit the band earlier in the week - said she felt like a "robot" and wasn't expected to take time off to recover from illness.
Jesy made the allegations in two autobiographies of Little Mix from 2012 and 2016, called Ready to Fly: Our Official Story and Our World: Our Official Autobiography.
The singer said she was injected before performing on Simon Cowell's show America's Got Talent in 2015. She wrote: "On the day, my shoulder went and I couldn't move.