Will Garth Brooks lip sync at the 2015 ACM Awards? The jury's still out. But no matter whether his singing is live or not, Brooks' performance will still be very special, thanks in part to the guitar he'll be using.

Brooks tells Rolling Stone Country that during his performance, he'll be using a guitar from Buck Owens for the very first time. Owens gave Brooks the guitar in May 2005, on the night Brooks asked Trisha Yearwood to marry him at Owens' Crystal Palace in Bakersfield, Calif.

"The night I was proposing to my wife, he brought me a red, white and blue Telecaster, a Buck Telecaster," Brooks recalls. "It's the first time I've broken it out and am going to play it [Sunday night]."

Brooks and Yearwood were married that December.

The ACMs won't be the only time the special guitar sees the spotlight: After the ceremony, Brooks will be taking it out on the road for his World Tour.

"We're going to take the plate off it so I don't lose the inscription that [Buck] did himself and put another pick guard on it," Brooks says.

Brooks has been open about the possibility of lip syncing during his performance simply because he'll be coming off a five-show trek in Portland, Ore., and isn't quite sure if he'll have a voice left to muster out any notes. He's already recorded a track just for the ACMs if worse comes to worse.

"It's going to come right down to the wire because I didn't think I had a voice at the [ACM Lifting Lives] gala ... and it was there, so we'll see how it goes," Brooks says. "Either way, the track's not going to be perfect. For one, I can't do perfect; it's just not in my DNA. The track, even if we're lip syncing, is as live as it gets."

The 2015 ACM Awards will be a big night for Brooks, who, in addition to performing and being nominated for Entertainer of the Year, will also be receiving a 50th Anniversary Milestone Award.

The 2015 ACM Awards will air live from AT&T Stadium in Arlington, Texas, on April 19 at 8PM ET on CBS.

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