Miranda Lambert, Blake Shelton and Trace Adkins became early winners at this year's Academy of Country Music Awards when two categories were presented off-camera Saturday night (April 17) at the MGM Grand in Las Vegas. Lambert's "White Liar" received video of the year honors, and Shelton's collaboration with Adkins on "Hillbilly Bone" was named vocal event of the year. "White Liar" is nominated for song and single of the year at Sunday night's (April 18) awards show. Lambert, who is nominated for top female vocalist, is also in the album of the year category for Revolution. Shelton and Adkins will perform "Hillbilly Bone" during the 45th annual ACM Awards airing live on CBS at 8 p.m. ET/PT.