T-Pain has worked with some of the biggest names in hip-hop, so when he appeared on Watch What Happens Live, the famed rapper was asked by a fan which artist was the most difficult. After some quick thinking, T-Pain revealed that Diddy's motivation tactics were a little "discouraging" during a four-day studio session.

The Florida-born artist explained that Diddy would bypass songs before he could even get an idea for the track, which T-Pain said he wasn't used to. T-Pain added that despite the frustrating session, Diddy taught him to push himself harder with his music. 

Check out more of what T-Pain had to say in the above clip.

Source: Watch What Happens Live