Miranda Lambert and Blake Shelton
may be "Country's Hottest Guy," according to PEOPLE Country's latest issue
, but he doesn't always feel like it.
"Right now, I'm feeling sweaty and a little bit overweight and buzzed," The Voice
coach joked with PEOPLE during ACM rehearsals this weekend. "I exude sexy. I smell of sexy. I am the vision of sexy. I am the sound of sexy."
Of course, Shelton knows he was up against steep competition – past winners Tim McGraw and Keith Urban come to mind – but he believes he knows why he came out on top.
"This isn't our grandpa's format anymore," he said. "It's for young people like me that are 35, not those 40-year-olds anymore."
And Shelton's rugged good looks will be on display Sunday as he co-hosts the Academy of Country Music Awards with Reba McEntire. Shelton is also set to perform.
And while his wife Miranda Lambert
agrees that Shelton is "hot," she's not letting her husband get away without a little razzing.
"If y'all could have seen him the other day I think you would have rethought that choice," she said. "He would have been on the cover for other reasons. He's hot, I agree, but I see him at his best and his worst."
The ACM Awards will be broadcast live from Las Vegas on Sunday, April 1, on CBS at 8 p.m. ET., and PEOPLE.com will be live-blogging all the action!