Ariana Grande confessed to Seventeen magazine that was a victim of bullying during the four seasons of 'Victorious' ...

"I shared the set with someone who told me that I did not like. For some reason, I felt I needed his approval, so I started to change my way of being to please. That made me stop being friendly ... I was very unhappy during that time, "he confessed.

Ariana did not reveal who was the person who did these things so ugly.

But fortunately, that's in the past, as today, Ariana had a blast filming the new series 'Sam & Cat', alongside Jennette McCurdy.

Have you been bullying? Tell us ...