T-Pain is the type of guy to wear his feelings on his sleeve

During the Netflix series This Is Pop, T explained how a conversation he had with Usher in the first class of a plane headed to the 2013 BET Awards put him into a four-year depression.

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“Usher was my friend,” T-Pain said. “I really respect Usher. And he said, ‘I’m gonna tell you something, man. You kinda fu*ked up music.’

‘Yeah man you really fucked up music for real singers.’ I was like, ‘What did I do? I came out and I used Auto-Tune.’ He was like, ‘Yeah, you f*cked it up.’ I’m like, ‘But I used it, I didn’t tell everybody else to start using it.’”

Usher wasn't the first boldface act to point this out -- JAY-Z declared "Death Of Autotune" in a 2009 track.

But Usher's were the words that really got to T-Pain.