Usher's Biggest Takeaway from His Mentor, Sean "Diddy" Combs

Working with rapper Sean "Diddy" Combs as a teenager still looking for his footing in the music industry was an incredible experience for R&B singer Usher. The Grammy winner considers Diddy to be his mentor, and though he learned many things from the entertainment mogul, one of Usher's big takeaways is a behavior he continues to exhibit well into adulthood.

"I don't sleep to this day," Usher says. "I got it from him. I mean this is a dude who just never slept. I mean, he's probably the first one to get up and the last one to go to sleep, and that commitment I picked up."

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