Gala held May 23 in Las Vegas.

The Academy of Country Music Awards proved to be a triumphant night for the newly merged Nashville division of Sony BMG, and a particularly noteworthy evening for the company's Arista Nashville imprint.

Sony BMG won nine of the evening's 14 biggest awards, with seven of the nine going to Arista acts. The remaining two went to entertainer of the year winner Kenny Chesney (BNA) and top female vocalist Sara Evans (RCA).

In the Arista tally, three went to Brad Paisley, whose "Time Well Wasted" was named album of the year. Paisley also won the video and vocal event prizes for "When I Get Where I'm Going," collaboration with Dolly Parton.

Two of Arista's trophies went to last year's "American Idol" champ Carrie Underwood, who won for best new female vocalist and single of the year for "Jesus, Take the Wheel." Two trophies also went to Arista duo Brooks & Dunn, who won the top vocal duo award and song of the year for their hit "Believe." The latter trophy went to songwriters Ronnie Dunn and Craig Wiseman.

Capitol Records Nashville's Keith Urban was named top male vocalist while Lyric Street Records' Rascal Flatts won for top vocal group. Mercury Records' Sugarland was the winner in the top new duo or group category.

The evening included a few surprise winners. Evans' top female vocalist prize had her beating out strong competition from labelmate Martina McBride, plus Underwood, Gretchen Wilson and Lee Ann Womack.

And Broken Bow artist Jason Aldean, who is just two hit singles into his career, was named top new male vocalist, winning over Mercury's Billy Currington and Aldean's more established labelmate, Craig Morgan.

As previously announced, MCA Nashville's Vince Gill won the ACM's Home Depot Humanitarian Award.

The awards show was held May 23 at the MGM Grand Garden Arena in Las Vegas. Winners were selected by ACM voting members.