Beyoncé

The ‘Break My Soul’ hitmaker admitted her touring schedule and the tribulations of travel took a toll on her mental wellbeing.

Speaking in 2011, Beyoncé, 42, said: "It was beginning to get fuzzy - I couldn't even tell which day or which city I was at. I would sit there at ceremonies and they would give me an award and I was just thinking about the next performance. "My mother was very persistent and she kept saying that I had to take care of my mental health."