Zac Brown and Miranda Lambert lead nominees for the 2011 Academy of Country Music Awards.

L.A.-based org will hand out kudos at the MGM Grand Garden Arena in Las Vegas April 3; show will be televised on CBS.

Brown racked up nine nods – five with his eponymous band and four as writer-producer of “As She’s Walking Away.” Lambert took seven nominations, and was recognized in the entertainer of the year and top female vocalist categories.

Lambert will compete with Jason Aldean, Toby Keith, Brad Paisley, Taylor Swift and Keith Urban for entertainer of the year honors.

Aldean, Paisley, Urban, Blake Shelton and George Strait are up for top male vocalist. Joining Lambert in the top female vocalist category are Swift, Reba McEntire, Carrie Underwood and Lee Ann Womack.

Going head-to-head for top vocal duo are the JaneDear Girls, Joey + Rory, Montgomery Gentry, Steel Magnolia and Sugarland. Lady Antebellum, Little Big Town, the Randy Rogers Band, the Band Perry and the Zac Brown Band were tabbed in the best vocal group category.

Competing for album of the year are Swift’s “Speak Now,” the Zac Brown Band’s “You Get What You Give,” Kenny Chesney’s “Hemingway’s Whiskey,” Lady Antebellum’s “Need You Now,” Jamey Johnson’s “The Guitar Song” and Dierks Bentley’s “Up On the Ridge.”