Miranda Lambert leads the field with 7 CMA award nominations

photo Miranda Lambert is seen backstage at the Grammy Nominations Concert on Wednesday, Dec. 1, 2010, in Los Angeles. (AP Photo/Dan Steinerg)

Miranda Lambert leads the Academy of Country Music Association Awards field with seven nominations for the 46th Annual ACM Awards show. She is slated to perform at Riverbend this year in Chattanooga.

Lambert is up for her first top entertainer prize at the ACM Awards, which will air live on CBS from Las Vegas, on Sunday, April 3, at 7 p.m. Central. She's also nominated in the vocalist, single, song, video (twice) and vocal event categories.

"I really haven't had time to process this," said Lambert, who joined Ronnie Dunn in reading the ACM nominations Tuesday morning at the Country Music Hall of Fame and Museum's Ford Theater in an announcement aired live on CBS' The Early Show broadcast.