Miranda Lambert's 'Crazy Ex Girlfriend' is the ACM Album of the Year.

"I was not expecting this at all. I'm sitting right behind Kenny Chesney, so I don't feel right taking this," a shocked Lambert told the audience. "But thank you so much to my fans and to the industry for accepting me, being a little left of center. As a songwriter, I poured my heart and soul into this album. It's who I am, so thank you for appreciating it."

Lambert performed her latest single, 'Gunpowder and Lead,' on the broadcast. Her boyfriend, Blake Shelton, introduced her, joking that he better not mess up his intro, "because I certainly don't need a crazy ex-girlfriend!"