Miranda Lambert 'Totally Pumped' for Tonight's ACM Awards Performance!

Miranda Lambert rocks metallic cowboy boots as she takes a break from rehearsals for the 2014 Academy of Country Music Awards on Saturday (April 5) in Las Vegas.

The 30-year-old country crooner is set to hit the stage during the broadcast to perform, while her hubby Blake Shelton co-hosts the annual show.

PHOTOS: Check out the latest pics of Miranda Lambert

“I’m totally pumped,” Miranda told Billboard. “I’m singing for Merle Haggard with George Strait. Do you get any better than that? I’ve reached my peak.”

She continued, “Since I started in the business, people would ask me who my biggest influence is. I would always say Merle Haggard. But it’s true. He is absolutely the king, in my opinion, for his songwriting and his voice, how buttery smooth it is, and the way he delivers songs. I hope I do him justice. I’ve met him a bunch of times and I think he’ll be proud.”

Be sure to tune into the 2014 Academy of Country Music Awards TONIGHT, April 6 at @ 8PM ET/PT on CBS! Check back to JJ for full coverage of the event!