The nominated singers with reality TV ties will either be looking to defend their throne or steal one when the ACM Awards show, hosted by Luke Bryan and Dierks Bentley, airs live from the T-Mobile Arena in Las Vegas on Sunday, April 2 at 8PM ET/PT.
Urban, who judged the last several season of American Idol, leads the pack with seven nominations. Lambert, who finished third on Season 1 of Nashville Star, received a whopping total of six nominations.
Urban has been nominated for Entertainer of the Year, Male Vocalist of the Year, Album of the Year, Single Record of the Year, and Song of the Year. This year marks his seventh nomination for Entertainer of the Year and his tenth nomination for Male Vocalist of the Year.
Urban was nominated twice, as both the artist and producer, in the Album and Single Record of the Year categories. Urban's album Ripcord and hit song "Blue Ain't Your Color" are the ones being honored.
Lambert, a seven-time Female Vocalist of the Year, has been nominated for Female Vocalist of the Year again; Album of the Year -- which is her fifth time in this category -- for The Weight of These Wings; and Single Record of the Year, Song of the Year, and Video of the Year for "Vice." In the Song of the Year category, Lambert was nominated as both the artist and songwriter.
Underwood, who won the fourth season of American Idol, has been nominated for Entertainer of the Year against Urban, Aldean, Bryan, and Florida Georgia Line. She is also hoping to walk away with Female Vocalist of the Year against Ballerini, Lambert, Morris, and Musgraves.
Musgraves, who appeared on the fifth season of Nashville Star, has been nominated for Female Vocalist of the Year.
Alaina, who finished as the runner-up on Season 10 of American Idol, is up for the New Female Vocalist of the Year Presented by T-Mobile award. She must defeat the following nominees for the honor: Cam, Brandy Clark and Maren Morris.
And last but not least, Pope -- who won Season 3 of The Voice -- has been nominated for Vocal Event of the Year for the song "Think Of You" featuring Chris Young.
Pope faces tough competition in this category: Dierks Bentley Featuring Elle King with "Different For Girls;" Artists of Then, Now & Forever with "Forever Country;" Florida Georgia Line featuring Tim McGraw with "May We All;" and Kenny Chesney featuring P!nk with "Setting the World on Fire."