He is set to play boxing legend Sugar Ray Leonard in upcoming film Hands Of Stone.
And Usher is very committed to the role - and has the body to prove it.
"I train like an athlete every day, believe it or not," said the 34-year-old on preparing for the part, as he showed off his buff body in the November issue of Men's Health.
"My commitment to this character demands that I not only physically get ready, but also become him," he said of the boxer. "The hair, the personality, the manner he conducts himself in - all that. He's an incredible man."
But working his body so hard does have its drawbacks, admitted The Voice judge.
"My second day I decided to ride to the gym. So I rode there. Boxed. Rode the bike back home. Mentally, I'm the type of person who can ignore the pain. Put it somewhere else and allow my body to just go there. But I always suffer."
— Daily Mail
The women who are transforming Hollywood
Melissa McCarthy, Reese Witherspoon, Penelope Cruz and Shailene Woodley have each landed one of four covers for ELLE's November issue, a celebration of women in Hollywood.
The magazine chose the dynamic foursome as the women who have made the most extraordinary contributions to the movie industry over the past year.
Ms McCarthy, 43, who rarely graces fashion glossies, is perhaps the most significant. In playing non-traditional female lead roles, she has, in turn, become a non-traditional cover girl. And hers, which shows her wearing a Marina Rinaldi coat with her hair tousled into high-volume waves, more than holds its own alongside that of bombshell powerhouse Ms Witherspoon, Spanish beauty Ms Cruz and young ingenue Shailene.
The mother-of-two tells the magazine that the secret to a successful female comedic lead is in being flawed. The problem with so many Hollywood comedies, she explains, is that the heroines are too perfect.
"A lot of times, women have had all their tools taken away," she says. "It's like you're never inappropriate, you have the greatest job, you look great, your hair is amazing, and now go be funny."
— Daily Mail