Known as the "Singing Doctor," Calvin Peters walked into the 'American Idol' auditions last night with a cool demeanor only to reveal he'll be singing Maxwell's 'Whenever Wherever Whatever,' which Keith Urban compared to a "triple black diamond ski."

Despite the fact that Dr. Peters admitted in his introduction video to only returning to singing recently, he proved that his voice is not only amazing but also showcased his knowledge of vocal technique.

"I think you are very handsome," Mariah Carey admitted. "I think it's really unique that you are a singing doctor and I really, really like you a lot.

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Watch Calvin Peters Cover Maxwell's 'Whenever Wherever Whatever'

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