DJ Khaled is the hardest working man in music. From a post I made in another thread:
He works at pretty much every level of music from the creative to the executive, from the laying down of the beats themselves to the marketing campaigns.
I challenge you to find any person that is more involved in the music making process than DJ Khaled.
He does vocals, engineering, producing, DJing (local radio shows, nationally syndicated radio shows like his Beats 1 show, and as artist's DJs from his TS days), A&Ring, and label executive (President of Def Jam South for a while).
Even Diddy didn't do all that.
He works at pretty much every level of music from the creative to the executive, from the laying down of the beats themselves to the marketing campaigns.