He's here to win — by losing! Caleb Lee Hutchinson had another flawless performance on Sunday's night episode of American Idol, and viewers still can't get over his impressive weight loss along with his stellar voice. The 19-year-old revealed he has dropped 70 pounds since auditioning for the reality singing competition and the results are paying off.

His secret: drinking more water and walking. He also credited his growing popularity on Instagram for the inspiration to drop the pounds. "I’ve lost 70 pounds since I started this show — one night I was just like, 'Wouldn’t it be cool if I drank water and walked every night?'… and here I am," he told the judges earlier this season. And fans are loving his slimmed down transformation.

"Caleb will make it far just because he is a country singer. Also oh wow at him losing 70 pounds in the course of this competition," one viewer tweeted before another added, "Thick country accent, thick country vocals… congrats on the weight loss Caleb." A third chimed in, "Caleb has a sexy, country voice… he's killin it!"

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Caleb auditioned for the judges with his rendition of "If It Hadn't Been For Love" by The SteelDrivers in Georgia. At the time, he revealed he started playing guitar at the age of 12 and also showed off his great impression of judge Luke Bryan. "That's pretty good," Luke said of the impression before attempting one of his own. "That's pretty close," Caleb jokingly responded. "I think I might do it a little bit better. I think I sound more like the guy."

And fans can't help but to compare Caleb to another country singer: former American Idol winner Scotty McCreery. Caleb even sang Josh Turner's "Your Man" for his solo performance — which just happened to be Scotty's audition song. "I was team Scotty for sure," Caleb said before meeting the singer on the show. "I remember when Scotty was on, I had all kinds of people hit me up like, 'Hey, this guy is on Idol and he's trying to be you.' I mean, impersonation is a form of flattery. He did good, in his own way." Keep it up, Caleb!